| 单词 | propellant |
| 例句 | “When the rocket took off, the propellant was so loose it just fell inward. Too much of it burned at once.” October Sky 1999-04-01T00:00:00Z O’Dell chimed, and so coined our new term for the propellant. October Sky 1999-04-01T00:00:00Z I had decided to do the loading of our new propellant in sections, a few inches at a time. October Sky 1999-04-01T00:00:00Z “Next time we fly will be with a new propellant: zinc dust and sulfur. We’re going for maximum altitude.” October Sky 1999-04-01T00:00:00Z “It’s a means of determining the relative merits of propellants. By using the number denoting the specific impulse, calculations can be made to determine the exhaust velocity of a rocket and ultimately its overall performance.” October Sky 1999-04-01T00:00:00Z “Specific impulse is defined as the thrust in pounds of a given propellant divided by its consumption rate.” October Sky 1999-04-01T00:00:00Z Mr. Dubonnet tapped the rocket casing, and lumps of unburned propellant and ash dropped out. October Sky 1999-04-01T00:00:00Z “Q, why do we need a new propellant? What’s wrong with rocket candy?” October Sky 1999-04-01T00:00:00Z We’d watch the spring with binoculars and see how much thrust was produced and then divide the answer by the pounds of propellant burned and how long it took. October Sky 1999-04-01T00:00:00Z I showed both of them what I was doing, how I mixed the propellant, how I stood back when I threw a little of it in the heater. October Sky 1999-04-01T00:00:00Z When rocket propellant burned, it first produced a river of gas that flowed into the convergent section of the nozzle. October Sky 1999-04-01T00:00:00Z Our conclusion was we didn’t know what we were doing with the new propellant. October Sky 1999-04-01T00:00:00Z The series of equations we needed to work described the parameters of thrust coefficient, nozzle-throat area, combustion-chamber cross-sectional areas, and velocity of the gases predicted for any particular propellant. October Sky 1999-04-01T00:00:00Z Each pound to be launched required three pounds of propellant. Women in Space 2014-02-01T00:00:00Z I went down to my lab to mix up some more propellant. October Sky 1999-04-01T00:00:00Z This launch wasn’t advertised, because we had no idea how our new propellant of saltpeter and sugar would work. October Sky 1999-04-01T00:00:00Z “Quentin and I are going to design a sophisticated nozzle, and we need an advanced propellant to go along with it.” October Sky 1999-04-01T00:00:00Z Had we already passed the critical dimension for our new propellant? October Sky 1999-04-01T00:00:00Z “I fear the ratio of the mass of propellant added compared to the mass of the empty rocket will be too small,” he said. October Sky 1999-04-01T00:00:00Z "I figured out our clues. Ammonium nitrate. It's used in fertilizers, explosives, and rocket propellants." The Westing Game 1979-01-01T00:00:00Z It was heavy, and there wasn’t much room for the propellant after the nozzle and top plug were bolted in place. October Sky 1999-04-01T00:00:00Z Loading the zincoshine was a labor-intensive process, no more than three inches of propellant compressed at a time in the casement, a drying time of four hours required for each segment. October Sky 1999-04-01T00:00:00Z When the propellant hissed down to completion, Mom’s bathroom scale was scattered all over the pad. October Sky 1999-04-01T00:00:00Z But despite its often rudimentary nature, this stuff was incredibly influential and remains propellant. Essential tracks: John Carpenter's 'Lost Themes' gives off eerie, futuristic sounds 2015-01-31T05:00:00Z The drummers were tight, propellant, filled with momentum. The Grateful Dead jam in mostly perfect harmony in Santa Clara 2015-06-28T04:00:00Z Did you know that Ringo Starr played cowbell on "A Hard Day's Night" or that the shuffle-rhythm of "Another Girl" was so propellant? Is 'The Beatles in Mono' necessary? Yes and no. 2014-09-09T04:00:00Z SpaceX-led investigators in July zeroed in on a previously unknown explosive reaction between a titanium valve and a propellant used to ignite the thrusters. SpaceX to try rocket failure test again after bad weather delay 2020-01-19T05:00:00Z Featuring synthy dance beats, electronic flourish and propellant energy, the record sits alongside similarly infectious endeavors from his impressive discography such as “Odelay,” “Midnight Vultures” and “The Information.” All of the L.A. arts events and exhibitions to check out this fall 2017-09-07T04:00:00Z The Supergun required 10 tonnes of propellant for each shot – doubtless the reason why research was underway at Qa'qaa, where the explosive material was to be made. How the US let al-Qaida get its hands on an Iraqi weapons factory 2011-01-07T07:59:02Z Rocket fireworks consist of a mortar, a fuse, propellant powder, a shell, a bursting charge, and pellets known as "stars." 9 fascinating facts about fireworks 2021-07-13T04:00:00Z Ms. Waldman, however, was drawn to microdosing not so much as a career propellant, but as a last-ditch attempt to find mental equilibrium. How LSD ‘Microdosing’ Saved Ayelet Waldman’s Marriage 2017-01-07T05:00:00Z It's hard to explain what exactly it is, that propellant drive, but it permeates tracks. Review: Basement Jaxx endures, hits new peaks on 'Junto 2014-08-26T04:00:00Z So the law is now the propellant that forces them out of the country, as opposed to Allie’s own freewill and wanderlust. Paul and Justin Theroux on Eccentric Patriarchs and ‘The Mosquito Coast’ 2021-04-23T04:00:00Z Qa'qaa had made the propellant for the Nasser 81 artillery rocket programme, itself at the heart of the administration's case for war. How the US let al-Qaida get its hands on an Iraqi weapons factory 2011-01-07T07:59:02Z When I sang them, here was this noise behind me, this vast propellant that allowed me to find that rage and anger again, and make them completely contemporary to the now. "The original rage was intact": Bob Geldof on The Boomtown Rats' comeback, even during the pandemic 2020-06-26T04:00:00Z Riding propellant but gentle rhythms that seemed to glow with warmth, the group generated mesmerizing energy, much of it courtesy of songs from Gonzalez's new album, "Vestiges and Claws." Jose Gonzalez rides a vibe of gentle, mesmerizing energy 2015-05-01T04:00:00Z Missiles with built-in solid propellants can be made ready to launch faster and are easier to move and conceal, which theoretically makes it harder for adversaries to detect and preempt the launch in advance. North Korea says it tested new solid-fuel engines for intermediate-range ballistic missiles 2023-11-14T05:00:00Z Medical use is unaffected, and you will still be able to buy nitrous oxide as a propellant gas for whipped cream and other industrial purposes. What is nitrous oxide and why is it being banned? 2023-11-08T05:00:00Z Most of the damage was caused by propellant in the rocket and not by the warhead, he said. Live: Live updates | Cease-fire pleas and Israel-Hamas recriminations rise in wake of Gaza hospital blast 2023-10-18T04:00:00Z Were it an airstrike, there would have been a crater there; instead, the fiery blast came from the misfired rocket’s warhead and its unspent propellant, he said. Gaza’s doctors struggle to save hospital blast survivors as Middle East rage grows 2023-10-18T04:00:00Z "Most of this damage would have been done due to the propellant, not just the warhead," he said. Israel military steps up denial it hit Gaza hospital, says building undamaged 2023-10-18T04:00:00Z At launch, each motor had about 1.1 million pounds of polybutadiene acrylonitrile copolymer propellant, which has the consistency of a pencil eraser. Space shuttle Endeavour's rockets roll into L.A. as Science Center hails arrival 2023-10-11T04:00:00Z The additional visit to Arrokoth was a lucky bonus, achieved by dint of the KBO’s timely discovery when it was still within reach of the approaching spacecraft’s dwindling propellant reserves. Beyond Pluto, New Horizons Gets a Reprieve from NASA 2023-10-03T04:00:00Z Both harness a natural propellant that oceangoing vessels have depended on for centuries: the wind. In Shipping, a Push to Slash Emissions by Harnessing the Wind 2023-10-03T04:00:00Z The use of highly flammable building material inside the venue acted as a propellant, he added. Iraq fire: Eyewitnesses tell of wedding hall blaze horror 2023-09-27T04:00:00Z One worker stacked tagliatelle-shaped strips of explosive propellant in a tray. A Rush to Build Defenses in Europe, but Little Consensus on How 2023-09-12T04:00:00Z “During ascent, the vehicle sustained fires from leaking propellant in the aft end of the Super Heavy booster, which eventually severed connection with the vehicle’s primary flight computer,” the SpaceX update said. F.A.A. Spells Out Needed Fixes for SpaceX’s Starship Rocket 2023-09-08T04:00:00Z “They envision mining the water ice to produce air, drinking water, and propellant, fueling the needs of lunar habitats and even entire lunar industries in the future.” India makes history with landing near moon’s South Pole 2023-08-23T04:00:00Z Oxygen provides air to breathe, and hydrogen and oxygen can also be used as rocket propellants to get back home to Earth, or somewhere else in the solar system. On the Moon’s South Pole, a Quest for Ice 2023-08-23T04:00:00Z It could also be used for supplying propellant for spacecraft headed to Mars and other distant destinations. Chandrayaan-3: India's lunar lander Vikram sends close-up photos of Moon 2023-08-18T04:00:00Z "There is nothing sudden or surprising about North Korea’s continued development of large solid propellant rocket motors," they said. Latest North Korean missile sparks new debate over possible Russian role 2023-08-18T04:00:00Z These atomic-capable weapons have the range to hit the continental U.S, while their solid-fuel propellant means they can be swiftly moved out of cover, elevated and launched. In shift, North Korea’s Kim calls for ‘offensive’ military posture 2023-08-10T04:00:00Z "It's hard to do because rocket propellant, especially the oxidiser, is very corrosive," said Jeffrey Lewis, a missile researcher at the James Martin Center for Nonproliferation Studies. Exclusive: North Korean hackers breached top Russian missile maker 2023-08-07T04:00:00Z The House version of the annual defense bill requires the Pentagon to run a CL-20 pilot program that switches out either the explosive or propellant in three existing weapons. Eyeing China in the Pacific, US studies explosives to make missiles fly further 2023-08-02T04:00:00Z By mid-august, 2,392 pounds of propellant will be slowly loaded into the spacecraft. NASA nearing launch date for mission to metal-rich asteroid said to be worth quintillions 2023-07-22T04:00:00Z The first Vulcan was supposed to launch in May, but a propellant tank cracked during testing in March. A Rocket Alternative to SpaceX Inches Toward Its First Launch 2023-07-13T04:00:00Z Missiles with built-in solid propellants would be easier to move and hide, making it difficult for opponents to detect their launches in advance. North Korea fires its first ICBM in 3 months after making threat over alleged U.S. spy flights 2023-07-11T04:00:00Z In general, the string is made of a polymer resin, a substance that makes the resin foam up, a solvent, some coloring and the propellant that forces the chemicals out of the can. US forest managers urge revelers to swap fireworks for Silly String, but some say not so fast 2023-07-01T04:00:00Z This kind of powder is also used by militaries as the propellant for mortar ammunition, launching explosive-laden projectiles weighing from four pounds to 30 pounds or more. Chinese Firm Sent Large Shipments of Gunpowder to Russian Munitions Factory 2023-06-23T04:00:00Z The fuel in such missiles is already loaded inside, so they are more mobile than rockets using liquid propellant and are harder for outsiders to detect before launching. North Korea calls failed spy satellite launch ‘the most serious’ shortcoming, vows 2nd launch 2023-06-18T04:00:00Z Norway will provide the shells, while Denmark will donate fuses and propellant charges, the Norwegian ministry said. Norway, Denmark to donate 9,000 rounds of artillery to Ukraine 2023-06-15T04:00:00Z In a federal lawsuit filed last year, plaintiffs alleged that ARC’s inflators use ammonium nitrate as a secondary propellant to inflate the air bags. Tennessee company refuses US request to recall 67 million potentially dangerous air bag inflators 2023-05-13T04:00:00Z In February, a U.S. official told The New York Times that the American government believed that rocket propellant and munitions may have been loaded onto the ship, which is under U.S. sanctions. The U.S. ambassador to South Africa accused the country of providing weapons to Russia. 2023-05-11T04:00:00Z A U.S. official in South Africa said the American government believed that munitions and rocket propellant that Russia could use in the war might have been loaded onto the Russian tanker. South Africa Allowed Russian Plane Under U.S. Sanctions to Land at Base 2023-05-04T04:00:00Z It’s no wonder, because solid-fuel propellants are easier to operate than liquid-propelled missiles and most countries with ICBMs maintain a mix of both types. The scariest advancements in North Korea missile tech so far 2023-04-28T04:00:00Z Nuclear propellant will extend the patrol range of the boats, which are to be armed with both torpedoes and cruise missiles, but not nuclear missiles. Australia muscles up as China’s shadow looms over region 2023-04-26T04:00:00Z The propellant is pressed into tablets that can expand and develop microscopic holes if exposed to moisture. Tennessee company refuses US request to recall 67 million potentially dangerous air bag inflators 2023-05-13T04:00:00Z Both countries rely heavily on spotting North Korean launch preparations and pre-empting with their own strike assets, but pre-launch timings are significantly cut with solid fuel propellant. In Seoul, a voice for a new approach to the North Korea problem 2023-04-23T04:00:00Z Essentially, the 155 mm round is a very big bullet, made up of four parts: the detonating fuse, projectile, propellant and primer. Why the 155 mm round is so critical to the war in Ukraine 2023-04-22T04:00:00Z The solid propellants are more cost-efficient in terms of management, storage and deployment, said Shin Seung-ki, a research fellow at the Seoul-based Korea Institute for Defense Analysis. The scariest advancements in North Korea missile tech so far 2023-04-28T04:00:00Z After examining the stuck valve and refreshing the liquid methane and oxygen propellants needed to fuel Starship, SpaceX determined it was ready to launch again on Thursday. SpaceX’s Starship Rocket Will Try to Launch Again: What to Expect 2023-04-19T04:00:00Z The report describes it as a "gas commonly used as a propellant in air spray cleaners" which "can induce feelings of euphoria when inhaled". Aaron Carter accidentally drowned after taking drugs 2023-04-18T04:00:00Z After the delay was announced, SpaceX used the time to practice loading the rocket and spacecraft with some 10 million pounds of very cold propellant in what’s known as a “wet dress rehearsal.” SpaceX will try again to launch Starship on Thursday 2023-04-17T04:00:00Z Rapid reusability means that after coming back from space, Starship can be re-filled with propellant and be ready to launch again in a short period of time - like an aircraft. Starship gets FAA approval - but what exactly is Elon Musk's space vehicle? 2023-04-14T04:00:00Z Solid propellants are a mixture of fuel and oxidiser. Explainer: What is solid-fuel technology, and why is North Korea eager to develop it? 2023-04-14T04:00:00Z It has tested various ICBMs, but these were powered by liquid propellants that cannot be fuelled for prolonged periods. North Korea says it tested "most powerful" missile to date 2023-04-13T04:00:00Z South Korean media, citing confidential government sources, said that the North Korean missile may have been a brand-new model powered for the first time by a solid propellant. Jitters in Japan as latest North Korean missile takes flight 2023-04-13T04:00:00Z Over the last year, the company has been buying up more of the metals, propellant and other materials to produce more shells. Europe Has Pledged a Million Shells for Ukraine in a Year. Can It Deliver? 2023-04-09T04:00:00Z To re-fuel, the spacecraft would dock with another Starship - already circling the Earth - that acts solely as a propellant depot. Starship gets FAA approval - but what exactly is Elon Musk's space vehicle? 2023-04-14T04:00:00Z Solid fuel dates back to fireworks developed by the Chinese centuries ago, but made dramatic progress in the mid-20th century, when the U.S. developed more powerful propellants. Explainer: What is solid-fuel technology, and why is North Korea eager to develop it? 2023-04-14T04:00:00Z Water is not only vital for human life, but its component parts — hydrogen and oxygen — can be used as rocket propellant. NASA names crew for first human moon mission since Apollo 2023-04-03T04:00:00Z Its cartridge holds enough propellant to send the bullet flying out of the barrel at a speed that would cross six football fields in a second. The Blast Effect: How bullets from an AR-15 blow the body apart Relativity is among several companies building rockets to launch into orbit using liquid oxygen and liquid methane as propellants. The First 3-D Printed Rocket Fails Shortly After Launch 2023-03-23T04:00:00Z At some point, Purdy said, he saw a future where there are propellant depots in space, tugs that can move damaged satellites, junkyards and manufacturing in space on commercial space stations. War in space: U.S. officials debating rules for a conflict in orbit 2023-03-08T05:00:00Z Liquid propellants provide greater propulsive thrust and power, but require more complex technology and extra weight. Explainer: What is solid-fuel technology, and why is North Korea eager to develop it? 2023-04-14T04:00:00Z Its Terran 1 rocket is scheduled to lift off as early as March 8 from Cape Canaveral, Fla. Relativity’s rocket is made mostly with 3-D printing and uses liquid oxygen and liquid methane as propellants. Space and Astronomy in March: What to Expect 2023-03-01T05:00:00Z The launch was scrubbed within three minutes of the 1:45 a.m. scheduled liftoff time because of an issue with loading the liquid used to ignite the rocket’s propellants. SpaceX delays launch of astronaut crew set for International Space Station 2023-02-26T05:00:00Z Shipments of minerals and chemicals used in the production of missile casings, bullets, explosives and propellants have also increased, according to the Observatory of Economic Complexity. China’s Economic Support for Russia Could Elicit More Sanctions 2023-02-22T05:00:00Z All three types of ICBMs that North Korea has tested so far have relied on liquid propellants. North Korea Launches ICBM 2023-02-18T05:00:00Z Most of the country's largest ballistic missiles use liquid fuel, which requires them to be loaded with propellant at their launch site - a time-consuming process. North Korea shows off possible solid-fuel ICBM at nighttime parade -analysts 2023-02-09T05:00:00Z A nuclear-powered rocket would use a nuclear reactor to heat propellant to extreme temperatures before shooting the fuel through a nozzle to produce thrust. NASA and DARPA are working on a nuclear-powered rocket that could go to Mars 2023-02-03T05:00:00Z Powered by low-enriched uranium, the engine’s fission reactor will heat and vaporize liquid propellants, shooting the gases out of a nozzle to provide thrust. News at a glance: Pandemic declarations, job satisfaction in the COVID-19 era, and a nuclear-powered rocket 2023-02-01T05:00:00Z Investors jumped in, some of them without a lot of knowledge about the specific challenges of an industry that is in large part reliant on the careful combustion of thousands of gallons of volatile propellant. Beyond the hype, failure still is a big part of the space industry 2023-01-25T05:00:00Z As rockets launch to orbit, they often discard upper stages that have their own engines and propellant. Space Dodgers Water is not only key to sustaining human life, but its component parts — hydrogen and oxygen — can be used as rocket propellant, making the moon a gas station in space. The moon beckons once again, and this time NASA wants to stay “However, rapid maneuver in the space domain has traditionally been challenging because current electric and chemical space propulsion systems have drawbacks in thrust-to-weight and propellant efficiency.” NASA and DARPA are working on a nuclear-powered rocket that could go to Mars 2023-02-03T05:00:00Z Inside their vast hanger, the team is busy working on different rocket parts, from nose cones, to engines and containers for propellants. Can the UK's race to space take off? 2023-01-06T05:00:00Z Choose one with fewer ingredients, Herro says, and avoid anything in a pressurized can, because the propellant tends to dry out skin. Find a razor that’s good for your body (and less bad for the planet) 2023-01-03T05:00:00Z “Unlike liquid propellant missiles, solid propellant missiles are fueled at the time of manufacture and can thus be released far more quickly in a war, all else being equal,” Panda said. North Korea performs key test to build more agile ICBM 2022-12-15T05:00:00Z After reaching orbit, the tanks of the second stage — the Starship spacecraft — will be almost empty, with not enough propellant to head to the moon. Successful End of NASA Moon Mission Shifts Attention to SpaceX 2022-12-11T05:00:00Z Without the power, or propellant to maneuver, that makes them a bit like sitting ducks. NASA and DARPA are working on a nuclear-powered rocket that could go to Mars 2023-02-03T05:00:00Z Additional Starships would then launch to refill the propellant tanks of the lunar Starship before it left Earth orbit. Artemis II, Artemis III and beyond. 2022-12-11T05:00:00Z The larger propellant charges required to do that produce much more heat and can cause gun barrels to wear out more quickly. Artillery Is Breaking in Ukraine. It’s Becoming a Problem for the Pentagon. 2022-11-25T05:00:00Z Three men put themselves at grave risk on Wednesday when they climbed the launch tower and fixed a leaky valve on a rocket filled with explosive propellants. When NASA’s moon rocket sprang a fuel leak, the launch team called in the ‘red crew.’ 2022-11-16T05:00:00Z Then, it will conduct a series of launches — Mr. Musk has said no more than eight will be needed — of a tanker version of Starship to carry propellant to the gas station Starship. Successful End of NASA Moon Mission Shifts Attention to SpaceX 2022-12-11T05:00:00Z During a second launch attempt on Sept. 3, the countdown was halted again, this time by a leak in the line filling ultracold liquid hydrogen into the rocket’s propellant tanks. NASA Will Try to Launch Moon Rocket After 2 Scrubs and 2 Hurricanes 2022-11-15T05:00:00Z More ambitiously, beamed power could also someday be used to send spacecraft to interplanetary and even interstellar destinations without the costly trouble of carrying along onboard propellant. Is Space-Based Solar Power Ready for Its Moment in the Sun? 2022-11-14T05:00:00Z With the acquisition, Rheinmetall said it aims to bolster its core weapon, ammunition and propellants business. Rheinmetall agrees 1.2 billion euro deal to acquire Spanish explosives maker Expal 2022-11-13T05:00:00Z When a rocket is filled with propellants, human beings usually aim to be as far away as possible. When NASA’s moon rocket sprang a fuel leak, the launch team called in the ‘red crew.’ 2022-11-16T05:00:00Z Before Artemis III, SpaceX is to conduct an uncrewed test first to show that it can indeed perform a quick succession of Starship launches, reliably transfer propellants in orbit and safely land on the moon. Successful End of NASA Moon Mission Shifts Attention to SpaceX 2022-12-11T05:00:00Z The propellant in the two solid rocket boosters attached to the core booster can begin to sag, potentially affecting how it burns. NASA Will Try to Launch Moon Rocket After 2 Scrubs and 2 Hurricanes 2022-11-15T05:00:00Z North Korea wants to import some 100 tons of solid propellant by 2030, according to the advisory. Analysis: North Korea's missile launches show no scarcity of weapons funding, materials despite sanctions 2022-11-08T05:00:00Z This isn’t the first time questions have been raised over the propellant used in our spray cans. Aerosol hair products tainted by benzene may still be on store shelves 2022-11-01T04:00:00Z The propellant in the spray can was the source of the benzene, it found, and the company said it was working with suppliers to address the issue. Unilever Recalls Dry Shampoo Products in U.S. and Canada 2022-10-25T04:00:00Z “Knowing what I think I know about the state of our research into microgravity propellant transfer, we have a long way to go,” Mr. Dumbacher said. Successful End of NASA Moon Mission Shifts Attention to SpaceX 2022-12-11T05:00:00Z The problem with aerosols has largely appeared to be from the propellants used to spray the personal-care products from the cans. Dove, other Unilever dry shampoos recalled over cancer risk 2022-10-24T04:00:00Z Widely sold in small metal canisters, nitrous oxide is a colourless gas used as a propellant - for example, in whipped-cream dispensers. Laughing-gas makers call for sales ban to stop misuse 2022-10-18T04:00:00Z But in the 1970s, researchers found CFCs are partially responsible for destroying the Earth’s ozone layer, and companies stopped using them and eventually switched to other aerosol technologies, including butane-based propellants. Aerosol hair products tainted by benzene may still be on store shelves 2022-11-01T04:00:00Z The SM-3 blew up the satellite and the propellant without creating any space debris. Hunter Biden associate linked to PLA 2022-10-12T04:00:00Z The official said propellant had sparked a fire but the missile’s warhead did not detonate. South Korea apologizes for missile crash during drill with U.S. 2022-10-05T04:00:00Z Spray-on personal-care products such as dry shampoos often contain propellants such as propane and butane, which are petroleum distillates made by refining crude oil. Dove, other Unilever dry shampoos recalled over cancer risk 2022-10-24T04:00:00Z It’s a delicate operation because cryogenic propellants are notoriously finnicky—and explosive. NASA’s Artemis Delays Fuel Controversy over Rocket Design 2022-09-20T04:00:00Z To find out if your product contains a butane-powered propellant, just check the label. Aerosol hair products tainted by benzene may still be on store shelves 2022-11-01T04:00:00Z Such thermal conditioning, achieved via the "bleeding" in of supercold liquid hydrogen propellant, ensures there's no shock when the engines light up, mission team members have explained. NASA’s Next Launch Attempt for Artemis I Will Occur September 3 2022-08-31T04:00:00Z Hypersonic wind tunnels and test facilities for nuclear-powered rockets also will be needed, as well as space-based infrastructure such as propellant depots, moon landing pads, greater space navigational and domain awareness sensors. China’s space power to promote communism 2022-08-31T04:00:00Z The FDA has confirmed propellants are a potential source of benzene contamination. Dove, other Unilever dry shampoos recalled over cancer risk 2022-10-24T04:00:00Z The smallest and lightest atom in the universe, hydrogen makes an excellent propellant, but it’s also a master of escape. NASA’s Artemis Delays Fuel Controversy over Rocket Design 2022-09-20T04:00:00Z The chemicals used in the propellant should be listed in the ingredients or inactive ingredients box. Aerosol hair products tainted by benzene may still be on store shelves 2022-11-01T04:00:00Z Without a chill down, the temperature shock of supercold propellants could crack the metal engine parts. NASA Plans to Retry Its Moon Rocket Launch on Saturday 2022-08-30T04:00:00Z Otherwise, sudden shrinkage from the temperature shock of supercold propellants could crack the metal engine parts. NASA, and Space Fans, Await Decision on Next Chance to Launch Artemis Moon Rocket. 2022-08-29T04:00:00Z Sarafin said the issues “don’t point to an engine problem,” but rather the lines that feed propellant into them. Artemis I launch scrubbed as engine problem defies fast fix 2022-08-29T04:00:00Z Normally, teams bleed a small amount of the –423-degree-Fahrenheit propellant through the system to condition the four engines before blast off, but engine number three didn’t appear to be responding. NASA’s Artemis Delays Fuel Controversy over Rocket Design 2022-09-20T04:00:00Z In a statement announcing its recall of various dry shampoo products in October, Unilever said the company confirmed the propellant “as the source” of the benzene contamination. Aerosol hair products tainted by benzene may still be on store shelves 2022-11-01T04:00:00Z Otherwise, sudden shrinkage from the temperature shock of supercold propellants crack the metal engine parts. NASA, and space fans, await decision on next chance to launch Artemis moon rocket. 2022-08-29T04:00:00Z Launch controllers condition the engines by increasing pressure on the core stage tanks to bleed some of the cryogenic propellant to the engines to get them to the proper temperature range to start them. NASA delays launch of its massive SLS rocket amid engine issue 2022-08-29T04:00:00Z They had attempted to run cryogenic propellant through the engine to get it to the right temperature for flight but were having problems with the line. Artemis I launch scrubbed as engine problem defies fast fix 2022-08-29T04:00:00Z The one waiting on the pad to launch on Monday is 322 feet high, and will weigh 5.5 million pounds when filled with propellants. How and When to Watch NASA’s Giant Rocket Launch to the Moon 2022-08-28T04:00:00Z Johnson & Johnson also said the contamination was related to the propellant, and said it has adopted new practices “to prevent such an occurrence in the future,” a spokesman said. Aerosol hair products tainted by benzene may still be on store shelves 2022-11-01T04:00:00Z Then early Monday morning, the threat of nearby thunderstorms caused a 45-minute delay before liquid oxygen and liquid hydrogen could begin flowing into the rocket’s propellant tanks. NASA, and space fans, await decision on next chance to launch Artemis moon rocket. 2022-08-29T04:00:00Z The oxygen could provide breathable air; oxygen and hydrogen could also be used as rocket propellant. Why NASA Is Going Back to the Moon 2022-08-28T04:00:00Z The supercooled liquid hydrogen is extremely light and kept at minus-423 degrees Fahrenheit, which makes it a difficult propellant to control. Artemis I launch scrubbed as engine problem defies fast fix 2022-08-29T04:00:00Z NEA Scout will release small amounts of propellant from its cold-gas thrusters to control itself in space, but the sail itself will do most of the work. NASA’s Moon-Bound Megarocket Will Send a Spacecraft to an Asteroid, Too 2022-08-23T04:00:00Z Unless your instructor directs you otherwise, do not include any energy given to other masses, such as rocket propellants. College Physics for AP Courses 2015-08-12T00:00:00Z The largest use for hydrogen fluoride is in production of hydrochlorofluorocarbons for refrigerants, in plastics, and in propellants. Chemistry 2019-02-14T00:00:00Z For example, due to their different chemical properties, butane is suited for use as a fuel for torches, whereas isobutene is suited for use as a refrigerant and a propellant in spray cans. Biology for AP Courses 2022-06-09T00:00:00Z In the past, the space agency had trouble loading the vehicle with the liquid hydrogen and liquid oxygen that serve as its propellant. Artemis I launch scrubbed as engine problem defies fast fix 2022-08-29T04:00:00Z In early April, it attempted to conduct a “wet dress rehearsal” of countdown procedures, including the loading of more than 700,000 gallons of liquid hydrogen and liquid oxygen rocket propellants. NASA’s Moon Rocket Heads Back to the Launchpad 2022-08-16T04:00:00Z If the Moon holds enough water, it could be used for agriculture and life support, and split into hydrogen and oxygen for rocket propellant. Stowaways on NASA’s massive Moon rocket promise big science in small packages 2022-08-15T04:00:00Z A typical propellant reaction in which solid aluminum is oxidized by ammonium perchlorate is represented by this equation: Chemistry 2019-02-14T00:00:00Z It is still used as a propellant for artillery and other weapon systems crucial to the U.S. military. Pentagon invests in last surviving U.S. black powder factory 2022-08-11T04:00:00Z That water could then be broken apart into oxygen and hydrogen, which would provide both air to breathe for astronauts and rocket propellants for travelers seeking to travel from the moon to other destinations. South Korea Is Scouting Out the Moon, With More Missions to Come 2022-08-05T04:00:00Z However, the propellant tanks were fully filled for the first time, and controllers were able to continue the rehearsal until the countdown terminated with 29 seconds left. NASA’s Moon Rocket Heads Back to the Launchpad 2022-08-16T04:00:00Z The firm produces military explosives, propellants and fuels. Several people injured in blast at French military explosives producer 2022-08-03T04:00:00Z Benzene is not an ingredient in any Banana Boat product, but it is part of the propellant that sprays the sunscreen out of the can, the F.D.A. said. Banana Boat Recalls Hair and Scalp Sunscreen Over Low Levels of Carcinogen 2022-07-31T04:00:00Z This over-the-counter asthma inhaler was reintroduced with a different propellant in 2019. Prednisone speeds recovery from severe poison ivy reaction 2022-07-20T04:00:00Z CFCs were used by industry as refrigerants, degreasing solvents, and propellants. Environmental Biology 2018-09-06T00:00:00Z Because propellant is one of the main constraints on Webb’s lifetime, and momentum management is one of Webb’s main uses of propellant. Meet the Woman Who Makes the James Webb Space Telescope Work 2022-07-11T04:00:00Z He compared the likely weapon to a Civil War-era musket, in which the gunpowder or the propellant is loaded separately to the bullet projectile. Attack on former Japan PM stuns nation known for gun control 2022-07-08T04:00:00Z Virgin Orbit initially postponed the mission on Thursday after finding that its rocket propellant temperature was “slightly out of bounds.” Virgin Orbit successfully launches satellites during first night mission 2022-07-02T04:00:00Z Within a short time, the price skyrocketed, apparently due to a change in propellant from CFC to HFC. Prednisone speeds recovery from severe poison ivy reaction 2022-07-20T04:00:00Z The launch was originally scheduled for Wednesday night, but that attempt was scrubbed due to a propellant temperature issue. Virgin Orbit rocket launches 7 US defense satellites 2022-07-02T04:00:00Z We do these momentum dumps periodically, each time using little propellant. Meet the Woman Who Makes the James Webb Space Telescope Work 2022-07-11T04:00:00Z Our systems are in great health, but our propellant temperature was slightly out of bounds, and out of extreme caution, we are scrubbed for the day. Virgin Orbit scrubs first night launch due to propellant temperature being "out of bounds" 2022-06-30T04:00:00Z The influence of the two bodies helps make the orbit highly stable, minimizing the amount of propellant needed to keep a spacecraft circling the moon. NASA’s Return to the Moon Starts With Launching a 55-Pound Cube 2022-06-26T04:00:00Z One source of unintentional benzene comes from propellants such as isobutane. Is benzene still a problem in sunscreen? 2022-06-22T04:00:00Z One of the objectives they didn’t meet included demonstrating something known as “bleed flow” — a way to maintain proper temperatures of the propellant — because of the hydrogen leak. Dress rehearsal for NASA’s deep-space rocket cut short by mere seconds 2022-06-21T04:00:00Z But, as you mentioned, at this stage we have enough propellant to get into the 2040s, so Webb’s longevity is more likely to be limited by how long components last…. Meet the Woman Who Makes the James Webb Space Telescope Work 2022-07-11T04:00:00Z Small satellite launcher Virgin Orbit postponed its first night launch on Wednesday after finding that the temperature of its rocket propellant was “slightly out of bounds.” Virgin Orbit scrubs first night launch due to propellant temperature being "out of bounds" 2022-06-30T04:00:00Z Thomas Whitmeyer, NASA’s deputy associate administrator for common exploration systems development, said that filling the propellant tanks and counting down so close to zero were major milestones. How Does NASA Get Back to the Moon? Practice, Practice, Practice. 2022-06-21T04:00:00Z Boeing attempted to try again to launch Starliner last summer, but just hours before takeoff, the company halted the countdown after finding that more than a dozen propellant valves were sticking and not opening properly. Boeing’s Starliner spacecraft returns to Earth, wrapping up critical test mission 2022-05-25T04:00:00Z Boeing said it has since fixed that problem, caused when propellant seeped through a valve and mixed with ambient moisture that led to corrosion. Down two thrusters, Boeing’s Starliner docks with space station 2022-05-20T04:00:00Z You might not like this next question, then: Assuming everything else stays peachy, and propellant inevitably runs out, how will Webb die? Meet the Woman Who Makes the James Webb Space Telescope Work 2022-07-11T04:00:00Z Eventually, it concluded that its propellant had seeped through a valve and interacted with moisture in the air, creating nitric acid that corroded the valves and forced them to remain shut. Boeing faces a major test in the do-over of its spaceflight attempt 2022-05-19T04:00:00Z But just hours before liftoff, Boeing halted the flight after discovering some propellant valves that weren’t working properly. Boeing successfully launches Starliner spacecraft to orbit in do-over test flight 2022-05-19T04:00:00Z Another planned launch last summer got scrubbed just hours before liftoff due to some sticky propellant valves. Watch Boeing launch its Starliner space capsule in do-over flight 2022-05-19T04:00:00Z The company found that 13 of Starliner’s 24 valves — used to transport the capsule’s oxidizer propellant — were stuck in the wrong position. Boeing’s third launch attempt nears for embattled Starliner spacecraft 2022-05-19T04:00:00Z In his hand, he held what looked to be the remains of a used propellant charge once attached to a rocket-propelled grenade. To Survive, Some Afghans Sift Through Deadly Remnants of Old Wars 2022-05-14T04:00:00Z As a much smaller rocket, the Electron needs to use all of the propellant to lift the payload to orbit. Catch and Release: Rocket Lab Grabs Booster Falling From Space With a Helicopter 2022-05-02T04:00:00Z As a result, Starliner expended too much propellant and didn’t get into the right orbit it needed to reach the ISS. Boeing successfully launches Starliner spacecraft to orbit in do-over test flight 2022-05-19T04:00:00Z The first stage does the initial work of getting a mission off Earth, and once its propellants are expended it falls back towards the planet. Rocket Lab: Helicopter catches returning booster over the Pacific 2022-05-03T04:00:00Z Israel said its warplanes struck at least two targets in Gaza in the course of the exchange, including a tunnel it said contained chemicals used to produce rocket propellant. Israel strikes sites in Gaza after rocket attacks, as tensions rise 2022-04-21T04:00:00Z The propellants are extremely cold and fickle — the liquid oxygen is kept at minus-297 degrees Fahrenheit, the liquid hydrogen at minus-423 degrees. NASA moon rocket test postponed again until next week 2022-04-15T04:00:00Z With almost all of its propellant expended, the booster was much lighter than at launch. Catch and Release: Rocket Lab Grabs Booster Falling From Space With a Helicopter 2022-05-02T04:00:00Z Additionally, Boeing did not seem to have any trouble with its propellant valves, which caused the company to scrub its last launch back in June of 2021. Boeing successfully launches Starliner spacecraft to orbit in do-over test flight 2022-05-19T04:00:00Z Virginia Tech maintains long-standing academic and research partnerships with Tianjin University, home to two defense laboratories conducting classified military research on cutting-edge technologies in fields such as optoelectronics and propellants. Opinion | Virginia’s universities should not support China’s military 2022-04-08T04:00:00Z But it ran into problems with a valve designed to relieve pressure inside the rocket during propellant loading. SpaceX launches first all-private mission to International Space Station 2022-04-08T04:00:00Z Then the halt occurred just before the propellants were to begin flowing. NASA Stops Launch Rehearsal for Its Giant Moon Rocket 2022-04-03T04:00:00Z For one, the SLS runs on liquid propellants, while most ICBMs these days run on solid propellants. NASA to conduct elaborate dress rehearsal with new megarocket this weekend 2022-04-01T04:00:00Z If all goes well, the tests will culminate with a countdown in early April with hundreds of thousands of gallons of cold liquid hydrogen and liquid oxygen flowing into the propellant tanks. NASA’s Giant Moon Rocket Reaches the Launchpad for the First Time 2022-03-18T04:00:00Z Unlike SLS, Starship will need multiple propellant refillings to reach the Moon, and SpaceX has never tested such a technology before. As NASA rolls out its new mega-rocket, it leaves behind a fraught history 2022-03-17T04:00:00Z Mr. Musk said a series of Starship tankers would launch every few hours taking propellant for the moon-destined rocket. What Elon Musk Did and Didn’t Reveal About SpaceX’s Starship Rocket 2022-02-11T05:00:00Z On Monday, the loading of propellants is to begin at 7 a.m. NASA Stops Launch Rehearsal for Its Giant Moon Rocket 2022-04-03T04:00:00Z Meanwhile, the proposed launch site has significantly expanded in scope, and even includes major modifications like a natural gas plant for pretreating methane, one of the main propellants needed for Starship’s primary Raptor engines. How to watch Elon Musk’s Starship presentation live 2022-02-10T05:00:00Z Currently, inhalers for treating asthma and chronic obstructive pulmonary disease rely on propellants that use hydrofluorocarbons, potent greenhouse gases released into the atmosphere. Top corporations have vowed to fight climate change. Researchers say their plans fall short. 2022-02-06T05:00:00Z Now, Caroline and Sebastian have "greener" inhalers that contain no propellant. Why switching asthma inhaler could be better for you and the planet 2022-02-05T05:00:00Z For the moon mission, SpaceX would also have to be able to refill the propellant tanks of a Starship while in orbit around Earth. What Elon Musk Did and Didn’t Reveal About SpaceX’s Starship Rocket 2022-02-11T05:00:00Z The rehearsal, which started Friday night, was “wet” because it was to include pumping more than 700,000 gallons of liquid oxygen and liquid hydrogen into the massive rocket’s propellant tanks. NASA Stops Launch Rehearsal for Its Giant Moon Rocket 2022-04-03T04:00:00Z The reactor would also require immense volumes of cryogenic propellant, likely sourced from on-orbit storage tanks that carry major engineering challenges of their own. NASA’s ‘Nuclear Option’ May Be Crucial for Getting Humans to Mars 2022-01-27T05:00:00Z When the propellant runs out in the next 10 to 20 years, that’s when the observatory’s mission will end. NASA’s revolutionary James Webb Space Telescope reaches final orbit in space 2022-01-24T05:00:00Z Commercially, the gas is used as a propellant for canned whipped cream, hence its other common name: “whippets.” He Used to Run Several Times a Week. Now He Could Barely Stand. 2022-01-12T05:00:00Z "This would obviate the need for in-field fuelling, which could increase the responsiveness of North Korean liquid propellant missiles," said Ankit Panda, a senior fellow at the U.S.-based Carnegie Endowment for International Peace. Analysis: N.Korea looks to risky pre-fuelled missiles to reduce launch time 2022-01-11T05:00:00Z For the loading of propellants, the fan is switched to a different mode to blow in more air. NASA Stops Launch Rehearsal for Its Giant Moon Rocket 2022-04-03T04:00:00Z Only P&G offered any insight into its recalls, saying the propellants used by a manufacturing partner that it declined to name were to blame for the contamination. Toxins in household products leave FDA chasing a vapor trail 2021-12-30T05:00:00Z According to NASA, the precision of these maneuvers leaves the spacecraft with more propellant it can use to maintain its final position for observing the cosmos. James Webb Space Telescope’s fuel expected to last more than 10 years 2021-12-29T05:00:00Z This reduces the amount of propellant needed for the craft to maintain its orbit. Massive Webb telescope may see close to the beginning of time 2021-12-24T05:00:00Z The report said that developing more stable propellants would allow missiles to remain fuelled on a day-to-day basis. Analysis: N.Korea looks to risky pre-fuelled missiles to reduce launch time 2022-01-11T05:00:00Z During launch, as a rocket rapidly gobbles up its propellant, the first stage of the rocket — or most of the rocket’s body — will eventually break away and fall back to Earth. Rocket Lab unveils details of new reusable Neutron launcher 2021-12-02T05:00:00Z Many are made in bombproof facilities since the propellants, such as butane and propane, are derived from petroleum and are prone to explode. Toxins in household products leave FDA chasing a vapor trail 2021-12-30T05:00:00Z Treasury yields - the main propellant of global borrowing costs, will end the month roughly 14 bps lower. COVID comeback caps a November to remember in markets 2021-11-30T05:00:00Z They are mainly used in air conditioning, industrial chillers and fridges and can also be found in some aerosol propellants and fire protection fluids. Polluting greenhouse gases being sold online and smuggled to UK 2021-11-23T05:00:00Z Kremlin spokesman Dmitry Peskov refused to comment on Popov’s claim and pointed to the official probe that concluded that the catastrophe was triggered by an explosive propellant that leaked from a faulty torpedo. Russian admiral: Kursk disaster caused by NATO sub 2021-11-22T05:00:00Z These include ensuring there is enough propellant at the end of a satellite's life so that it can be pulled out of the sky or at the very least pushed into a graveyard orbit. Russian anti-satellite test adds to worsening problem of space debris 2021-11-16T05:00:00Z Aerosol manufacturers are reevaluating many aspects of their industry, including its supply chain and examining specifications for raw materials, including propellants, Alexandra Hayes, a spokeswoman for the Household & Commercial Products Association, said in an email. Toxins in household products leave FDA chasing a vapor trail 2021-12-30T05:00:00Z Starship’s design relies on the vehicle being refueled while in orbit, in order to have enough propellant to reach the Moon. NASA’s Moon landing will likely be delayed ‘several years’ beyond 2024, auditors say 2021-11-16T05:00:00Z Without propellant, Webb will drift from L2 and eventually fall into a fatal spin. On the launch pad at last, NASA’s Webb telescope will probe first stars and weather on alien worlds 2021-11-11T05:00:00Z Rockets are still powered by thousands of gallons of highly combustible propellants. As NASA and SpaceX prepare to fly another crew to the space station, engineers are fixing a leaky toilet on the spacecraft 2021-10-29T04:00:00Z For early Nikes, that included carefully fueling the weapons with propellant. Perspective | Eyes on the skies: Army vet remembers life at a Nike missile site 2021-10-23T04:00:00Z “During the manufacturing process, traces of benzene may be present in a variety of raw materials, which may include the propellant that is used to disperse contents from an aerosol can,” Hayes said. Toxins in household products leave FDA chasing a vapor trail 2021-12-30T05:00:00Z A regular gun cartridge has a shell casing holding a propellant powder. Alec Baldwin fired prop gun that killed one crew member, says he is ‘fully cooperating’ with investigation 2021-10-21T04:00:00Z Modern bullets are made of a cartridge, consisting of a shell holding a propellant powder. What are prop guns and why are they dangerous? 2021-10-22T04:00:00Z The Volvo inflators do not use ammonium nitrate, but the propellant can still deteriorate when exposed to high heat and humidity, according to documents posted Thursday by the National Highway Traffic Safety Administration. Volvo adds 195,000 vehicles to recall for dangerous air bags 2021-10-21T04:00:00Z “Will we do something different? That’s exactly what we’re looking at,” he said, adding that engineers might decide to load Starliner’s propellant closer to launch, or find new ways to mitigate moisture. Boeing deepens investigation into astronaut capsule woes, prompting more delays 2021-10-20T04:00:00Z But just hours before liftoff, the company found that a number of Starliner’s valves, used to transport oxidizer — a critical propellant needed for the flight — weren’t in the right alignment. How corrosive valves may have delayed the launch of Boeing’s Starliner 2021-10-19T04:00:00Z When a normal gun is fired, the propellant is ignited and the bullet attached to the front of the shell is activated. Alec Baldwin fired prop gun that killed one crew member, says he is ‘fully cooperating’ with investigation 2021-10-21T04:00:00Z When a gun fires, it ignites the propellant, firing the bullet attached to the front of the shell forward. What are prop guns and why are they dangerous? 2021-10-22T04:00:00Z Dealers will replace the driver’s air bag “with a modern state-of-the-art propellant/inflator,” the Volvo documents say. Volvo adds 195,000 vehicles to recall for dangerous air bags 2021-10-21T04:00:00Z But space missions have also come under scrutiny for their own environmental impact, as propellants required to launch rockets into space can expel carbon dioxide, liquid hydrogen, kerosene or other chemicals into the atmosphere. NASA turns technology back toward Earth to focus on climate change 2021-10-18T04:00:00Z Astra says that there was a leakage of the rocket’s propellant that caused the engine to cut off early, which was “something we hadn’t seen before.” Small satellite launcher Astra identifies cause behind strange sideways rocket launch 2021-10-12T04:00:00Z Dealers will replace the inflators with new ones “with a modern state-of-the-art propellant/inflator,” the Volvo documents say. Volvo recalls older cars; air bag inflators can explode 2021-10-05T04:00:00Z Takata inflators made since the late 1990s use a powerful chemical, ammonium nitrate, as a propellant. Explainer: Why investigators are still probing Takata air bag inflators 2021-09-21T04:00:00Z The water could be chemically split into hydrogen and oxygen, providing the propellants burned in spacecraft engines. Nasa selects landing site for Moon rover mission 2021-09-20T04:00:00Z Then there was a long wait before the rocket was to be filled with propellant, 35 minutes before liftoff. SpaceX Launches Astronaut Crew Like No Other on Orbital Adventure 2021-09-15T04:00:00Z It allowed the use of ozone-destroying chemicals that were important for health and safety—such as propellants in asthma inhalers—but banned uses in products such as hairsprays. Maine’s ban on ‘forever chemicals’ marks a big win for some scientists 2021-08-27T04:00:00Z Rocket companies like SpaceX often use liquid oxygen as a propellant. COVID surge causes liquid oxygen problems for SpaceX, water utilities 2021-08-27T04:00:00Z Mr. Vollmer said the problem occurred among 24 valves that control the flow of nitrogen tetroxide, a propellant used by Starliner’s thrusters. Boeing’s Starliner Launch Is Delayed, Again, Possibly Until Next Year 2021-08-13T04:00:00Z “The energy required to enter into orbit of Mercury would be prohibitively expensive in terms of propellant.” Hot dates: 2 spacecraft to make Venus flyby 2021-08-08T04:00:00Z No matter what fuel the rockets use, they burn enormous amounts of propellants, depleting the ozone layer and emitting large quantities of heat-trapping greenhouse gases. Space tourism: Damaging ‘joy rides’ 2021-07-23T04:00:00Z The global space industry uses less than a tenth of a percent of propellant than the aviation industry does. Jeff Bezos vows to fight climate change, but space tourism could do more harm, critics say. 2021-07-21T04:00:00Z This design, with propellants in different phases - solid and liquid in this case - is known as a hybrid rocket motor. Virgin Galactic: Richard Branson's long, winding path to space 2021-07-11T04:00:00Z This is the second explosion this month at the Sloboda plant, which produces home appliances as well as artillery ammunition, propellants and explosives. Three injured in explosion at Serbian ammunition plant 2021-06-19T04:00:00Z Last month, the module was joined by a cargo spacecraft containing equipment, propellant and supplies, including food. China launches first astronauts to its new space station, as race with U.S. heats up 2021-06-17T04:00:00Z China's cargo spacecraft, carrying supplies, equipment and propellant, docked with the space station's key module Tianhe on Sunday, the official news agency Xinhua reported. China, deportation policy set to challenge Australia-New Zealand talks 2021-05-30T04:00:00Z To produce rockets, Hamas chemists and engineers mix propellant from fertilizer, oxidizer and other ingredients in makeshift factories. EXPLAINER: How did Hamas grow its arsenal to strike Israel? 2021-05-20T04:00:00Z That advance will be crucial for future astronauts arriving from Earth — both to create something for them to breathe and to generate propellant for their return to Earth. NASA Mars Helicopter’s Second Flight Is a Success 2021-04-22T04:00:00Z The country’s new generation of missiles uses solid propellants, making them quicker to launch, easier to transport and more difficult to target. A Quiet Arms Race Is Rapidly Heating Up Between the Two Koreas 2021-04-19T04:00:00Z “It’s the propellant,” Hoffman said about social media. The rise of domestic extremism in America That propellant consists of liquid hydrogen, which is the rocket's fuel, and liquid oxygen, which helps the fuel burn. SLS: Crucial test for world's most powerful rocket 2021-03-18T04:00:00Z Towards the middle of the vehicle are the propellant tanks. What is Elon Musk's Starship? 2021-03-04T05:00:00Z A leak in a propellant tank may have caused the explosion. SpaceX Mars Rocket Prototype Explodes, but This Time It Landed First 2021-03-03T05:00:00Z SpaceX plans to use the wells to extract methane, one of the two propellants used for its new Raptor engine that powers Starship. With ‘Starbase’ and a new Starlink factory, Musk deepens foray into Texas 2021-03-03T05:00:00Z This will be the largest craft ever sent to the Red Planet, in part because it will have to carry enough propellant for a return trip. NASA rover Perseverance lands on Mars in mission to search for past life 2021-02-18T05:00:00Z It disappeared in 2011 because the propellant that was used to deliver the drug was banned. Psyllium helps reader treat both heartburn and constipation 2021-02-03T05:00:00Z SpaceX had filled the propellant tanks of this prototype of Starship — its ninth one — and looked ready to launch. SpaceX’s Prototype Mars Rocket Crashes in Test Flight 2021-02-02T05:00:00Z When the propellant tanks stopped rupturing, two of the prototypes made short successful flights last year. SpaceX Mars Rocket Prototype Explodes, but This Time It Landed First 2021-03-03T05:00:00Z Commercial airplanes rely on kerosene-based propellant, but companies are experimenting with turning biomasses, such as vegetable oil and even used diapers, into jet fuels. Greener air travel will depend on these emerging technologies 2021-01-15T05:00:00Z One factor is that the core stage propellant tanks can only be filled with hydrogen and oxygen a total of nine times. SLS: Nasa finds cause of 'megarocket' test shutdown 2021-01-19T05:00:00Z The Food and Drug Administration approved a different propellant for this asthma drug in 2018, so it is once again available over the counter. Psyllium helps reader treat both heartburn and constipation 2021-02-03T05:00:00Z When the propellant tanks stopped rupturing, one of the prototypes made a short successful flight in September. SpaceX’s Prototype Mars Rocket Crashes in Test Flight 2021-02-02T05:00:00Z Towards the middle of the craft are the propellant tanks. What is Elon Musk's Starship? 2021-01-08T05:00:00Z Nasa said the rocket responded well to the propellant being loaded. SLS: Crucial test for Nasa's 'mega-rocket' 2020-12-21T05:00:00Z On the next flight, engineers simply need to adjust the ratio of the propellants in the tanks, Kemp said. Startup Astra reaches space for the first time — but barely misses orbit 2020-12-16T05:00:00Z The boosters will burn six tonnes of solid, aluminium-based propellant each second when the SLS launches. Nasa 'megarocket' assembly begins in Florida 2020-11-25T05:00:00Z Four hours after liftoff, Nasa announced that it was investigating “an issue with propellant heaters and continuing to gather data”. SpaceX Nasa launch: astronauts head to International Space Station onboard Dragon capsule 2020-11-15T05:00:00Z The combustion takes place in stages, and the engine's design cuts the amount of propellant that's wasted. What is Elon Musk's Starship? 2021-01-08T05:00:00Z The propellant was brought to the site on six barges via the waterway that winds through the grounds of Stennis Space Center. SLS: Crucial test for Nasa's 'mega-rocket' 2020-12-21T05:00:00Z These twin boosters stand more than 17 storeys tall and burn six tonnes of solid propellant each second. Nasa's giant SLS rocket: a guide 2020-11-13T05:00:00Z After the tanks are full, they will be continually topped up, because the propellants are at temperatures of several hundreds of degrees below zero and boil off over time. Nasa's new 'megarocket' set for critical tests 2020-11-13T05:00:00Z Particles from vaporizing propellant tanks, computers, solar panels and other exotic materials will form around an 85-kilometer altitude then drift downward, accumulating in the stratosphere along with launch’s soot and alumina. An Underappreciated Danger of the New Space Age: Global Air Pollution 2020-11-06T05:00:00Z "To transfer propellant it becomes very simple: You use control thrusters to accelerate in the direction that you want to empty." What is Elon Musk's Starship? 2021-01-08T05:00:00Z During the test, liquids were due to flow through the turbopumps - which feed propellant to the engine combustion chambers - and the engines themselves. SLS: Crucial test for Nasa's 'mega-rocket' 2020-12-21T05:00:00Z Because fire synthesizes its surroundings, it can’t be tied to a single propellant or a single solution. Op-Ed: The West is choking on smoke. When will it penetrate the nation's consciousness? 2020-10-26T04:00:00Z The bulk of the funding went to companies researching cryogenic propellants, freezing liquids used to fuel spacecraft. Talking on the moon: Nasa and Nokia to install 4G on lunar surface 2020-10-19T04:00:00Z Others targeted under different programs include senior Atomic Energy Organization of Iran officials as well as people associated with its liquid propellant ballistic missile organization, Shahid Hemmat Industrial Group. U.S. imposes Iran sanctions, says U.N. penalties resume despite skepticism 2020-09-21T04:00:00Z The Treasury Department also sanctioned three individuals and four entities associated with Iran’s liquid propellant ballistic missile organization, the State Department said. U.S. imposes sanctions on Iran's defense ministry, Venezuela's Maduro 2020-09-21T04:00:00Z On its Artemis blog, Nasa said: "First looks at the data indicate the stage performed well during the propellant loading and replenish process." SLS: Crucial test for Nasa's 'mega-rocket' 2020-12-21T05:00:00Z It burns around six tonnes of propellant every second, generating more thrust than 14 four-engine jumbo commercial airliners. Booster rocket for Moon missions set for key test 2020-09-02T04:00:00Z SpaceX fast boats will soon approach the Endeavour to recover its parachutes from the water and check for any leaking propellants. NASA astronauts aboard SpaceX’s Crew Dragon capsule splash down in the Gulf of Mexico 2020-08-02T04:00:00Z While the crew splashed down safely, a problem with the Apollo spacecraft during reentry caused fumes from rocket propellant to fill the capsule, causing breathing and eye problems for the astronauts. NASA Astronauts in SpaceX Capsule Make 1st Water Landing Since 1975 2020-08-02T04:00:00Z But it’s a potentially dangerous situation because of the possibility of toxic propellant fumes from the spacecraft’s thrusters. SpaceX capsule swarmed by boaters after successful splashdown 2020-08-02T04:00:00Z That propellant is fuel and an oxidiser - a chemical that makes the fuel burn. SLS: Crucial test for Nasa's 'mega-rocket' 2020-12-21T05:00:00Z “Because you are using up consumables on board the vehicle — like propellant, oxygen, and so forth.” SpaceX’s Crew Dragon slated to bring NASA astronauts home for the first time this weekend 2020-07-31T04:00:00Z The first boat will check to see if the Dragon capsule is leaking any fluids, propellant or vapors. NASA astronauts aboard SpaceX’s Crew Dragon capsule splash down in the Gulf of Mexico 2020-08-02T04:00:00Z One of the crucial supplies that astronauts will need is oxygen, for breathing and as a rocket propellant. NASA Launches Perseverance Rover, Capping Summer of Missions to Mars 2020-07-30T04:00:00Z The change in the propellant rules took effect on Tuesday, Kim said at a briefing in Seoul. Revised missile pact with U.S. to facilitate South Korean spy satellite 2020-07-28T04:00:00Z Rafferty further explained that behind the projectile is a super-charged propellant and a sliding block breech engineered to accommodate the technical challenges of firing a longer-range weapon. How did the Army double the range of artillery attack? 2020-07-27T04:00:00Z An instrument the size of a car battery will covert atmospheric carbon dioxide into oxygen, an essential ingredient for rocket propellant and breathing systems. NASA’s next Mars rover is brawniest and brainiest one yet 2020-07-27T04:00:00Z Rescue crews descended on the Dragon spacecraft minutes after it landed, stabilizing the capsule as it bobbed in the water, checking to make sure there were no propellant leaks and gathering the parachutes. NASA astronauts aboard SpaceX’s Crew Dragon capsule splash down in the Gulf of Mexico 2020-08-02T04:00:00Z An instrument the size of a car battery will covert atmospheric carbon dioxide into oxygen, an essential ingredient for rocket propellant and breathing systems. NASA’s next Mars rover is brawniest and brainiest one yet 2020-07-27T04:00:00Z “If we fire low-altitude launch vehicles based on our own solid fuel propellant as planned, it would dramatically improve our military’s reconnaissance capabilities.” Revised missile pact with U.S. to facilitate South Korean spy satellite 2020-07-28T04:00:00Z That caused the spacecraft to squander its propellant, and a planned docking at the International Space Station was called off. Scrutinizing SpaceX, NASA Overlooked Some Boeing Software Problems 2020-07-07T04:00:00Z The company conducted a dress rehearsal of the rocket on June 22nd, filling it up with propellant and running through all the procedures to practice for the actual launch. NASA delays launch of its next Mars rover as time runs out for takeoff 2020-06-30T04:00:00Z Yet, a keystone of the Covid-19 problem in the United States is systemic racism; health, housing, and employment disparities are the propellant of this fire. Racism and Covid-19 threaten our health – we can't fight them as separate battles 2020-06-29T04:00:00Z But to travel down to the moon and back up to the high Gateway orbit requires a lander with double the propellant needed from low orbit. Opinion | Send the SpaceX Dragon to the moon 2020-06-22T04:00:00Z The “propellant” would be a massive translucent balloon filled with hydrogen, which would ascend at the breakneck pace of 12 miles per hour. New company Space Perspective wants to take you to the stratosphere via high-altitude balloon 2020-06-18T04:00:00Z The chemical is used in fireworks, rocket propellants, gun powder and more. Worker burned in flash fire at Georgia pyrotechnic plant 2020-06-18T04:00:00Z Liquid engine ascent is a reference to the mix of super-chilled kerosene and cryogenic liquid oxygen propellants consumed by the Merlin engines. Astronauts: Falcon 9 rocket was 'totally different' ride than the space shuttle 2020-06-14T04:00:00Z That could yield oxygen for astronauts to breathe, as well as propellant for rockets traveling home to Earth or elsewhere in the solar system. NASA Needs to Find Ice on the Moon. This Rover Will Lead the Search. 2020-06-11T04:00:00Z SpaceX’s Falcon 9 uses only liquid propellants, rocket-grade kerosene and liquid oxygen, and the result, the astronauts said, was a relatively fluid flight. SpaceX launch of NASA astronauts provides a chance to compare the new and old 2020-06-01T04:00:00Z The weather cleared as the rocket was loaded with propellant. SpaceX Lifts NASA Astronauts to Orbit, Launching New Era of Spaceflight 2020-05-30T04:00:00Z At one minute before launch, the command flight computer will begin its final prelaunch checks and the rocket propellant tanks will pressurize. Dragon capsule achieves orbit, heads towards International Space Station 2020-05-30T04:00:00Z “The 58 caliber is about 30-foot long. It has a bigger chamber, which allows for a different propellant and different breech. Muzzle velocity is generated through the length of the tube,” Rafferty said. Army builds new 18.6-mile range tank killing weapon 2020-05-28T04:00:00Z There is no way to exaggerate the inherent risk involved any time people are placed atop a rocket filled with thousands of gallons of highly volatile propellants. Flying astronauts has always been risky. No wonder NASA and SpaceX are on edge. 2020-05-26T04:00:00Z The sooner SpaceX pumps in that propellant before launch, the less time there is for the liquids to warm up and boil away. Here’s what to expect as SpaceX launches its first human crew to space 2020-05-26T04:00:00Z Last year, Musk said full reusability and thrifty use of propellant would drop the cost of each Starship launch to $2 million. SpaceX now dominates rocket flight, bringing big benefits—and risks—to NASA 2020-05-20T04:00:00Z SpaceX Launch Director Mike Taylor authorized flight engineers to begin loading propellants into the Falcon 9 boosters and Crew Dragon capsule at 2:29 p.m. Dragon capsule achieves orbit, heads towards International Space Station 2020-05-30T04:00:00Z The Starliner experienced an anomaly immediately after launch that led it to waste fuel reserves, leaving it short of the propellant necessary to reach the orbiting outpost. SpaceX completes emergency crew escape manoeuvre 2020-01-19T05:00:00Z The user presses on a canister to release a puff of drug mixed with a propellant, while inhaling slowly and steadily to draw the medicine into the lungs. The environmental concerns driving another inhaler makeover 2020-05-12T04:00:00Z The system includes other modules to provide propellant to the lander at different points in the mission. NASA Picks Moon Lander Designs by Elon Musk and Jeff Bezos Rocket Companies 2020-04-30T04:00:00Z That mission is supposed to launch later this year and will target the Intelsat 1002 satellite, which is also running low on propellant. An old satellite gets a new lease on life, thanks to the help of a servicing satellite 2020-04-17T04:00:00Z That prevented the propellants from separating into layers, which causes misleading pressure readings. Apollo 13’s Astronauts Survived Disaster 50 Years Ago. Could It Happen Again? 2020-04-13T04:00:00Z This includes taking in a high-speed airflow, compressing the air and then igniting it with gas or some kind of propellant to generate thrust. Pentagon hypersonic weapons hit 'impact point' 2020-03-20T04:00:00Z When the Montreal Protocol was signed three decades after the Medihaler’s introduction, the vast majority of inhalers in use were MDIs that used CFC gases as the propellant. The environmental concerns driving another inhaler makeover 2020-05-12T04:00:00Z That led to the spacecraft squandering its propellant, and a planned docking at the International Space Station was called off. ‘Close Call’: NASA-Boeing Investigation of Starliner Flight Finds Lapses 2020-03-06T05:00:00Z The problem, colloquially known as the “tyranny of the rocket equation,” is that as payload mass increases, so does the amount of propellant required to break free of Earth’s gravitational grip. Escaping the Tyranny of the Rocket Equation 2020-02-18T05:00:00Z Typically, satellites are supposed to get rid of all their propellant before they move to the graveyard orbit. DirecTV is moving one of its satellites to a safer orbit over fears of explosion 2020-01-24T05:00:00Z U.S. regulators say the cause of the inflator explosions is propellant breaking down after long-term exposure to high temperature fluctuations and humidity. Toyota recalls 361,000 vehicles for air bag inflator issue 2020-01-22T05:00:00Z Other companies took a different path, focusing on developing a type of inhaler that uses no propellant at all. The environmental concerns driving another inhaler makeover 2020-05-12T04:00:00Z But the rocket will be fully fueled, which means some of that propellant might light up. Watch as SpaceX’s newest spacecraft attempts to escape a fake rocket emergency 2020-01-18T05:00:00Z The Saturn V rocket that took astronauts to the moon was 85 percent propellant by mass on the launchpad, nearly identical to the space shuttle. Escaping the Tyranny of the Rocket Equation 2020-02-18T05:00:00Z The company noted in its filing that only a “nominal portion” of the 73 kilograms of propellant within the satellite and requested a waiver of the rule. DirecTV is moving one of its satellites to a safer orbit over fears of explosion 2020-01-24T05:00:00Z Any excess propellant “is expected to be consumed in the deflagration or aerosolized,” according to an environmental assessment compiled by the Federal Aviation Administration. SpaceX plans to destroy a rocket Saturday in a key test of its spacecraft’s emergency abort system 2020-01-17T05:00:00Z With no propellant to dispense their contents, DPIs instead rely on a quick, deep inhalation to draw the drug into the lungs. The environmental concerns driving another inhaler makeover 2020-05-12T04:00:00Z The ship experienced an anomaly immediately after launch that led it to waste fuel reserves, leaving it short of the propellant necessary to reach the orbiting outpost. SpaceX to practise emergency crew capsule escape 2020-01-17T05:00:00Z At least 20 Park Avenue Elementary School students were doused by the jet propellant Tuesday morning when the plane abruptly turned back to LAX shortly after taking off for Shanghai. 4 teachers sue Delta after jet fuel dump over elementary school 2020-01-17T05:00:00Z The company is also looking at other ways to minimize how much propellant is on board Spaceway-1 before it’s moved, according to the FCC. DirecTV is moving one of its satellites to a safer orbit over fears of explosion 2020-01-24T05:00:00Z The SLS core stage contains two propellant tanks - one to hold liquid oxygen and another for liquid hydrogen. Nasa Moon rocket core leaves for testing 2020-01-09T05:00:00Z The user presses on the canister to release a puff of drug mixed with a propellant, while slowly inhaling to draw the drug into the lungs. The environmental concerns driving another inhaler makeover 2020-05-12T04:00:00Z In addition to the tanks, the core stage houses the vehicle’s avionics system, including the flight computers, the vehicle navigation system and the main propulsion system, which feeds propellant to the engines. Massive NASA rocket part to be ferried up Mississippi River on barge 2020-01-08T05:00:00Z Analysts at Army-Technology.com described the Fateh 110 missile as “a road-mobile solid propellant system that was previously used by the country in an attack on a ski resort in Israel.” Pentagon: Technology, defense prevented deaths in Iran missile attack in Iraq 2020-01-08T05:00:00Z Called the Green Run Test, the event will entail filling the core up with propellant and igniting stage’s four main engines, just as they would during flight. NASA finally rolls out completed core of its massive new rocket 2020-01-08T05:00:00Z In addition to the tanks, the core stage houses the vehicle’s avionics system including the flight computers, the vehicle navigation system and the main propulsion system, which feeds propellant to the engines. Moon river: Rocket part ferried on the mighty Mississippi 2020-01-08T05:00:00Z Instead of a propellant, the devices rely on a quick, deep inhalation to draw the drug in. The environmental concerns driving another inhaler makeover 2020-05-12T04:00:00Z In addition to the tanks, the core stage houses the vehicle’s avionics system including the flight computers, the vehicle navigation system and the main propulsion system, which feeds propellant to the engines. Moon river: Rocket part ferried on the mighty Mississippi 2020-01-08T05:00:00Z Attempts to send a command to fix the problem apparently did not reach the spacecraft because it was in between satellite communication links, and it used too much propellant to continue to the space station. Boeing Starliner Launches Into Wrong Orbit After Clock Problem 2019-12-20T05:00:00Z Last year, it discovered a propellant leak during a test of the capsule’s abort motor. Possible software issue forces NASA to cancel Boeing Starliner’s attempt to dock with space station 2019-12-20T05:00:00Z Last year, a propellant leak caused a fire that damaged a Boeing test capsule. Boeing's Starliner puts itself in the wrong orbit, won't reach space station 2019-12-20T05:00:00Z It’s long been known that the switch from CFC to HFA propellants didn’t solve all the environmental problems associated with the devices. The environmental concerns driving another inhaler makeover 2020-05-12T04:00:00Z Boeing also has had a host of problems — from a propellant leak last year to a problem with its parachute system during a test of its abort engine last month. Boeing Starliner launch on Friday comes at critical time for company amid 737 Max controversy 2019-12-18T05:00:00Z Its components — hydrogen and oxygen — can be used as propellant, turning the moon, then, into a gas station in space. Boeing, NASA clash over push for Congress to fund new stage for moon rocket 2019-12-11T05:00:00Z That’s because there’s usually enough propellant left over to pull off such a ground landing. Watch SpaceX launch its last cargo mission to the space station of 2019 2019-12-04T05:00:00Z For a country that just wants calm commerce with China — the propellant behind 28 years of steady growth — the revelations of the past week have delivered a jolt. Suddenly, the Chinese Threat to Australia Seems Very Real 2019-11-28T05:00:00Z Meanwhile, companies are working to develop MDIs containing propellants with a smaller carbon footprint. The environmental concerns driving another inhaler makeover 2020-05-12T04:00:00Z Mortar shells, rockets and artillery rounds are particularly vulnerable because they are powered by propellants that make them liable to launch at the slightest provocation. Climate Change May Be Blowing Up Arms Depots 2019-11-14T05:00:00Z You’ll have periodic moments of delight when you realize you’ve just built an actual propellant tank or installed the camera that was used to film Neil Armstrong’s famous walk down the ladder to the surface. The Verge Holiday Gift Guide 2019 2019-11-05T05:00:00Z "A new concept for in-space propulsion is proposed in which propellant is not ejected from the engine, but instead is captured to create a nearly infinite specific impulse," Burns wrote in the paper's abstract. NASA scientist creates engine concept that can reach 'close to the speed of light' 2019-10-16T04:00:00Z This includes taking in a high-speed air flow, compressing the air and then igniting it with gas or some kind of propellant to generate thrust.“ Air Force arms B1-B bomber with hypersonic weapons 2019-10-01T04:00:00Z Mr. Musk on Saturday discussed his desire to manufacture rocket propellant on site, instead of trucking it in. SpaceX Unveils Silvery Vision to Mars: ‘It’s Basically an I.C.B.M. That Lands’ 2019-09-29T04:00:00Z While the first passenger Starship is parked around Earth, another Super Heavy will need to launch a second “tanker” Starship, one filled with mostly propellant. Watch Elon Musk give a design update on SpaceX’s next-generation Starship rocket 2019-09-28T04:00:00Z They act as propellants to release the product out of the can, Francl said. She left a can of dry shampoo in her car. It blasted a hole through the roof. 2019-09-23T04:00:00Z Gangs, for instance, a favorite tabloid and cable-television indicator and cause of street violence, are strongly deprecated as a propellant in urban crime. Walmart’s Announcement and Other Signs of Hope in the Gun Crisis 2019-09-05T04:00:00Z It is labeled with descriptions such as “damaged propellant burner trailer.” Trump says U.S. not to blame for explosion at Iranian missile site 2019-08-30T04:00:00Z Campbell’s article listed a slew of tips from adding river rock to flower beds to natural propellant concoctions. Tennessee editorial roundup 2019-08-14T04:00:00Z The Russian Ministry of Defense, quoted by state-run news outlets, said that two people died and six were injured on Thursday in an explosion of what it called a liquid propellant rocket engine. U.S.-based experts suspect Russia blast involved nuclear-powered... 2019-08-09T04:00:00Z Most satellites must rely on thrusters to be mobile — tiny engines that combust chemical propellants to push a vehicle through space. Solar-sailing satellite proves it can use light to propel through space 2019-07-31T04:00:00Z Most spacecraft use chemical propellants, the space version of gasoline. The Good Kind of Crazy: The Quest for Exotic Propulsion 2019-07-29T04:00:00Z ISRO, which is overseeing this mission, says the spacecraft will now need less propellant to reach the Moon and will last longer in space. India successfully launches its first lunar lander bound for the Moon 2019-07-22T04:00:00Z The company believes this will prevent any liquid propellant entering the gaseous pressurisation system. Leaky component led to SpaceX explosion 2019-07-16T04:00:00Z Two experts said in separate interviews with Reuters that a liquid rocket propellant explosion would not release radiation. U.S.-based experts suspect Russia blast involved nuclear-powered... 2019-08-09T04:00:00Z A valve accidentally leaked some of the vehicle’s propellant, starting a chain reaction that caused the spacecraft to burst apart. SpaceX finally reveals cause of April spacecraft explosion 2019-07-15T04:00:00Z April 10, 1982 - The Indian National Satellite System is launched for communications and broadcasting but is abandoned a year later when its altitude control propellant is exhausted. Ahead of 2nd moon shot, a timeline of India’s space program 2019-07-12T04:00:00Z Extracted from frosty craters, the ice could be used for manufacturing rocket propellant, fuel cells and radiation shielding—not to mention for producing potable water. Science and Sustainability May Clash on the Moon 2019-07-10T04:00:00Z Most recently, Intelsat 29e — which provided communication and navigation services to the Caribbean and North Atlantic — “experienced damage that caused a leak of the propellant on board the satellite”. Tiny robots are ‘dominating space’ 2019-07-01T04:00:00Z The vehicle will run on a new type of propellant developed by the US Air Force that’s meant to serve as an alternative to hydrazine, the current propellant of choice for most satellite engines. An atomic clock, "green" propellant, and a sunlight-surfing sail are headed to space next week 2019-06-21T04:00:00Z SpaceX says that a leaky valve caused the propellant needed for these thrusters to cross into another system — one of really high pressure. SpaceX finally reveals cause of April spacecraft explosion 2019-07-15T04:00:00Z But throwing the object off its orbit wouldn’t require a nuclear device if we could engineer a spacecraft or other propellant to smash directly into it. Humans are probably safe from a catastrophic asteroid strike — for now 2019-06-12T04:00:00Z Each spacecraft will weigh about 2,000 lb, of which 900 lb will be propellants so that 1,100 lb containing 125 lb of scientific instruments will be orbited. From the archive 2019-06-10T04:00:00Z But the earthy R&B of his hometown served as his main stylistic and emotional propellant. Dr. John, flamboyant soul of New Orleans music, dies at 77 2019-06-06T04:00:00Z In contrast, the “green” propellant going up next week — hydroxylammonium nitrate — is much more palatable, with no noxious fumes. An atomic clock, "green" propellant, and a sunlight-surfing sail are headed to space next week 2019-06-21T04:00:00Z For decades, CFCs were used as propellants, refrigerants, foaming agents and solvents in all sorts of common products and machines, including spray deodorants, air-conditioners and fire extinguishers. We're in trouble: Skin cancer is on the rise, and not just for golfers - Golf Digest 2019-06-06T04:00:00Z Designers need to be sure a satellite has enough propellant to combat the friction of an expanding atmosphere as the sun approaches maximum, and they need to shield its electronics from solar particles. Scientists tackle a burning question: When will our quiet sun turn violent? 2019-05-30T04:00:00Z Flames release gases that act like propellant, sending fireballs rolling across treetops. On the arsonist’s trail: inside Australia’s worst bushfire catastrophe 2019-05-24T04:00:00Z Known as solar electric propulsion, the technique requires about 10 times less propellant than a traditional thruster would need, according to NASA. NASA picks satellite maker Maxar to build the first crucial piece of its new lunar space station 2019-05-23T04:00:00Z When hydrazine reacts in an engine, it gets up to 900 degrees Celsius, while the green propellant gets up to 1,800 degrees Celsius. An atomic clock, "green" propellant, and a sunlight-surfing sail are headed to space next week 2019-06-21T04:00:00Z Last year, Boeing also faced a significant setback when during a test of the emergency abort system of its capsule, it discovered a propellant leak. SpaceX failure dims NASA’s hope for quick US return to launching its own astronauts 2019-04-25T04:00:00Z The combination of those propellants may be scrutinized as part of the investigation into an accident Saturday during a “static fire” test of a Crew Dragon’s SuperDraco engines in Florida. SpaceX turned to fast-igniting fuel for its capsule escape system. That could be part of the accident probe 2019-04-23T04:00:00Z Video footage from a company called ExoAnalytic Solutions showed the satellite’s propellant leaking into space. The latest lost satellite is now space junk that could put other spacecraft at risk 2019-04-19T04:00:00Z The CFC propellant used to push the medicine into the lungs was banned by international treaty because it depletes ozone from the atmosphere. Saltpeter to curb sexual urges an urban legend 2019-02-27T05:00:00Z Adams also is sponsoring legislation that would protect children by disarming perpetrators of the domestic violence that is a propellant of mass shootings. Kentucky editorial roundup 2019-02-20T05:00:00Z Its elements, hydrogen and oxygen, can be used as rocket propellant, which is why many refer to water as “the oil of the solar system.” NASA wants to get to the moon ‘as fast as possible.’ But countries like China and India are racing there, too. 2019-02-14T05:00:00Z The Raptor engine uses a less conventional propellant than the Merlin engine SpaceX developed to power its workhorse Falcon 9 rocket. SpaceX test-fire of Mars spaceship's flight engine is milestone for its engine development 2019-02-04T05:00:00Z In the 1960s, she studied the combustion of gaseous mixtures of fluorine, oxygen and hydrogen: fluorine’s high reactivity gave it a potential use in rocket propellants. Celebrate the women behind the periodic table 2019-01-27T05:00:00Z In November 2018, the Food and Drug Administration approved an alternative formulation with a different propellant. Saltpeter to curb sexual urges an urban legend 2019-02-27T05:00:00Z He added that the Starship prototype’s “actual tanks” used for propellant were “fine.” Part of SpaceX's Mars spaceship prototype damaged by wind 2019-01-23T05:00:00Z As it stood, fully fueled, on the launchpad, 85 percent of its mass was propellant. NASA wants to get to the moon ‘as fast as possible.’ But countries like China and India are racing there, too. 2019-02-14T05:00:00Z Musk noted, however, that the actual propellant tanks needed for the prototype are fine. SpaceX’s new test rocket topples over thanks to strong Texas winds 2019-01-23T05:00:00Z It takes about 19 tons of propellant just to get a single ton of payload into space. Opinion | The new space race pits the U.S. against China. The U.S. is losing badly. 2019-01-10T05:00:00Z The spacecraft has enough propellant left to possibly head to a third target, but that depends on whether there is anything close enough along its path. Follow NASA’s New Horizons Mission as It Heads for New Year’s Flyby With Ultima Thule 2018-12-31T05:00:00Z Nearly all the propellant on board will be reserved for launch, and there won’t be much left over to perform a powered landing with the vehicle’s engines. Watch SpaceX launch its final Falcon 9 rocket of the year for the Air Force 2018-12-21T05:00:00Z To do that, rockets need an enormous amount of propellant. NASA wants to get to the moon ‘as fast as possible.’ But countries like China and India are racing there, too. 2019-02-14T05:00:00Z “Each time we shoot we are testing something else. We are getting more information, more data and refining the projectile and propellant, cannon and breach. There is still a lot we don’t know.” Amy artillery testing in Arizona aimed at shooting farther 2018-12-15T05:00:00Z But getting a ton of payload off the moon requires only one ton of propellant. Opinion | The new space race pits the U.S. against China. The U.S. is losing badly. 2019-01-10T05:00:00Z Standardized valves, latches, and rails ease the replacement of batteries, solar panels, computers, reaction wheels, and propellant. Explore NASA’s dream space telescopes in our interactive visual 2018-12-13T05:00:00Z By combining solar energy with lunar water, we could produce rocket propellant for the LEV to use to fly back to Earth and to travel around the moon. Opinion | We have the technology to build a colony on the moon. Let’s do it. 2018-12-10T05:00:00Z The company said it planned to sell the M6 propellant for mining. 5 get prison after 2012 military munition blast in Louisiana 2018-11-29T05:00:00Z It’s essential to consider the barrel, the projectile and propellant together, Rafferty said. Amy artillery testing in Arizona aimed at shooting farther 2018-12-15T05:00:00Z This is the year before the year I will turn forty, and now the idea that if I don’t do something it won’t get done mostly acts as a propellant instead of inducing paralysis. No Place Like Home, by Nancy Franklin 1995-10-09T04:00:00Z “I’m getting high in the Valley but I’m low on hope,” she sings as spaghetti-western inspired rhythms, intricately designed, act as propellant. California Sounds: New L.A.-area music from Dominique Pruitt, Tim Presley's White Fence, Lost in Stars and the Samps 2018-11-16T05:00:00Z A key goal of the second phase is to get propellant production going on the moon. Opinion | We have the technology to build a colony on the moon. Let’s do it. 2018-12-10T05:00:00Z Most airbag inflators use oxidizers in the propellant that deploys the bag, which leads them to be classified as hazardous waste, the EPA said. U.S. to ease hazardous waste rules for airbag disposal 2018-11-14T05:00:00Z The larger current option, the 7.62mm bullets, are short on propellant with too much mass. Army sets sights on bigger, bolder, harder hitting bullets 2018-11-01T04:00:00Z Sowers calculates that mining firms could turn a profit by extracting around 1,000 tonnes of water a year and electrolysing it into its constituent oxygen and hydrogen parts for propellant. How to build a Moon base 2018-10-23T04:00:00Z Ultimately, Rocket Lab settled on Wallops because much of the infrastructure is already in place to support a new launchpad, such as places to store propellant and stations to track launching rockets. Space startup Rocket Lab will build a second launch site in Virginia 2018-10-17T04:00:00Z The third phase would have continuous operations, including propellant production on the lunar surface. Opinion | We have the technology to build a colony on the moon. Let’s do it. 2018-12-10T05:00:00Z “The cheapest solution is going to be relying on the propulsion of the satellites and making the propellant tank bigger,” Jonathan Goff, president and CEO of startup Altius Space Machines, tells The Verge. As satellite constellations grow larger, NASA is worried about orbital debris 2018-09-28T04:00:00Z ULA’s reported decision also validates the new technology Blue Origin used in its BE-4 engine, namely the use of liquefied natural gas as a propellant. United Launch Alliance picks Blue Origin's engine for its new rocket, reports say - Los Angeles Times 2018-09-27T04:00:00Z These gases could then be stored and either used as propellant or channelled through fuel cells to supply energy. How to build a Moon base 2018-10-23T04:00:00Z It runs on liquid oxygen and liquid methane, making it the first engine to use such propellants. Military’s primary launch provider poised to pick Blue Origin’s new engine for future rocket 2018-09-27T04:00:00Z Importantly, North Korea has completed development work on its large liquid propellant engines for intercontinental-range ballistic missiles. Korea summit puts diplomacy back on track 2018-09-19T04:00:00Z Right now, rockets leaving Earth must carry all the propellant they need with them. Why mining the water on the Moon could open up space exploration 2018-08-23T04:00:00Z “The propellant in spray sunscreen is not considered a significant source of greenhouse gas emissions,” wrote EPA spokeswoman Enesta Jones. Some Sunscreen Harms Reefs--Warming Could Mean More of It 2018-08-15T04:00:00Z Excavation machines would need heat and power to release the water and turn it into propellant. How to build a Moon base 2018-10-23T04:00:00Z Rockets are categorized by propellant type: liquid, solid, hybrid. Virgin Galactic’s Rocket Man 2018-08-13T04:00:00Z Mr Kim had conveyed the North's intent to dismantle certain facilities there, including a static test stand for liquid propellant engines for rockets, at the June summit with US President Donald Trump. Korea summit puts diplomacy back on track 2018-09-19T04:00:00Z In fact, most of the weight of a rocket at launch is just the propellant needed to get the thing into space. Why mining the water on the Moon could open up space exploration 2018-08-23T04:00:00Z The return for lighting that propellant is a spacecraft that travels faster than any human-made object in history. 'Mission to touch the sun': Nasa to launch Parker Solar Probe 2018-08-10T04:00:00Z In June, a portion of Boeing’s test capsule suffered what was described as an “anomaly” during an engine test fire, leading to a propellant leak. First flights for Boeing and SpaceX crew capsules are delayed again 2018-08-02T04:00:00Z Yet during shutdown, several of the engine valves failed to close, leading to a propellant leak. Boeing delays first crucial test flights of its new passenger spacecraft again 2018-08-01T04:00:00Z But during engine shutdown, “an anomaly occurred” that resulted in a propellant leak. Boeing says its astronaut capsule system suffered 'anomaly' during engine test 2018-07-23T04:00:00Z So missions into deeper space become even more costly to pay for all the extra propellant needed to get there and the bigger rocket to house that propellant. Why mining the water on the Moon could open up space exploration 2018-08-23T04:00:00Z The engines ignited and fired during the full test, according to Boeing, but when they shut down, something caused a propellant leak. Failure during engine test could delay Boeing’s new passenger spacecraft 2018-07-23T04:00:00Z Boeing said it discovered the propellant leak during the emergency abort test in June at the White Sands Test Facility in New Mexico. Propellant leak sets back Boeing astronaut-spacecraft project 2018-07-21T04:00:00Z For instance, the weird behavior of SpaceX’s liquid oxygen propellant led to one of the company’s Falcon 9 rockets exploding on a launchpad in 2016. Europe will fire its record-setting big solid rocket motor this week 2018-07-11T04:00:00Z The facility employs nearly 1,200 people and is a leading producer of military-grade propellants for the Department of Defense. 1 man dies of injuries sustained from fire at Army plant 2018-06-17T04:00:00Z But what if instead of taking all the propellant you need with you from Earth, you refill your gas tank with propellant that’s already in space? Why mining the water on the Moon could open up space exploration 2018-08-23T04:00:00Z As the rocket climbs to space, the propellants rapidly empty from the tanks, and it’s the job of the COPVs to replace those liquids with helium so that the tanks maintain their shape. Here’s how Elon Musk might use rocket thrusters on the new Tesla Roadster 2018-06-16T04:00:00Z “During engine shutdown, an anomaly occurred that resulted in a propellant leak.” Propellant leak sets back Boeing astronaut-spacecraft project 2018-07-21T04:00:00Z Image: ESA By comparison, solid rocket motors are much simpler than their liquid propellant counterparts. Europe will fire its record-setting big solid rocket motor this week 2018-07-11T04:00:00Z He understood his role to be that of a propellant gear in a musical engine. Elvis Presley's drummer D.J. Fontana set the beat for rock 'n roll's future 2018-06-15T04:00:00Z Transporting propellant from the Moon to other locations in space is nowhere near as pricey as transporting it from Earth. Why mining the water on the Moon could open up space exploration 2018-08-23T04:00:00Z Even with North Korea's considerable progress in ballistic missiles, solid propellant missiles are the next frontier for its programmes. Did Trump and Kim really achieve anything in Singapore? 2018-06-12T04:00:00Z “We think it will be propellant for gas stations in space, but we wouldn’t want to bet.” The asteroid rush sending 21st-century prospectors into space 2018-06-09T04:00:00Z Instead of needing two liquids to mix inside a chamber, the propellants of a solid rocket motor are already mixed together in a big, solid chunk. Europe will fire its record-setting big solid rocket motor this week 2018-07-11T04:00:00Z And, by varying the rate at which the propellant tube entered the engine, it was possible to control the amount of thrust developed. A rocket that devours itself 2018-05-31T04:00:00Z Sowers recently did an analysis on how much it would cost to transport lunar propellant to different locations from space. Why mining the water on the Moon could open up space exploration 2018-08-23T04:00:00Z We lack enough detail to know what site Mr Trump meant specifically, but there's a chance that he was referring to North Korea's solid propellant engine test site at Hamhung. Did Trump and Kim really achieve anything in Singapore? 2018-06-12T04:00:00Z Villaraigosa embodies the community most targeted by Trump, but his ethnicity has not appeared to serve as a propellant. California’s race for governor has become a referendum on resistance 2018-06-03T04:00:00Z Rockets that run on solid propellants produce a higher amount of alumina particles, a combination of aluminum and oxygen that is white and reflective. Why it’s time to study how rocket emissions change the atmosphere 2018-05-31T04:00:00Z These bottles sit inside the main propellant tanks of the rocket, filling them with helium when the fuel is rapidly gobbled up during flight. SpaceX’s new Falcon 9 rocket still needs a key update before it can fly astronauts 2018-05-24T04:00:00Z “If you’re going to use that propellant in low Earth orbit, it’s still maybe a 20 or 30 percent savings, using lunar propellant versus Earth propellant,” says Sowers. Why mining the water on the Moon could open up space exploration 2018-08-23T04:00:00Z The father and son build sport rockets fuelled by a propellant commercially available at hobby stores. Bomb victim’s ex-boyfriend held on explosives charge 2018-05-18T04:00:00Z They were also used as propellants in aerosol sprays and in solvents. Mysterious rise in ozone-damaging chemical 2018-05-16T04:00:00Z "It Don't Make No Difference" is a propellant call-to-action that recalls Sly & the Family Stone's protest anthems. With a new reissue, 1970's Chicano rock band God's Children brings Thee Midniters' history back into focus 2018-05-15T04:00:00Z Starshot proposes that, instead of carrying propellant for propulsion, spacecraft be equipped with mirror-like sails and rely on lasers to push these probes outward. Building Sails for Interstellar Probes Will Be Tough, But Not Impossible 2018-05-10T04:00:00Z A propellant depot in low Earth orbit opens up a lot of opportunities for new kinds of missions in space. Why mining the water on the Moon could open up space exploration 2018-08-23T04:00:00Z To get more power out of its rocket, SpaceX brings its propellants — liquid oxygen and refined kerosene — to unusually low temperatures. Elon Musk’s SpaceX is using a powerful rocket technology. NASA advisers say it could put lives at risk. 2018-05-05T04:00:00Z And its decision to add propellant to the rocket with astronauts on board is attracting scrutiny. Musk’s SpaceX is using a powerful rocket technology; NASA advisers say it could put lives at risk. 2018-05-05T04:00:00Z The rocket engines being tested in the video run on liquid oxygen and liquid hydrogen propellants. No, NASA doesn’t have a cloud generation machine — it has rocket engines 2018-04-10T04:00:00Z The engines also use electric turbopumps, rather than the more conventional option of gas turbines, to push propellant into their combustion chambers. Is New Zealand the world’s best rocket-launching site? 2018-04-05T04:00:00Z For example, using lunar propellant to refuel rockets would lower the cost of going to the Moon from Earth by a factor of three, according to Sowers. Why mining the water on the Moon could open up space exploration 2018-08-23T04:00:00Z At those extreme temperatures, the propellant would need to be loaded just before takeoff — while astronauts are aboard. Elon Musk’s SpaceX is using a powerful rocket technology. NASA advisers say it could put lives at risk. 2018-05-05T04:00:00Z At those extreme temperatures, the propellant would need to be loaded just before takeoff – while astronauts are aboard. Musk’s SpaceX is using a powerful rocket technology; NASA advisers say it could put lives at risk. 2018-05-05T04:00:00Z Normally, rocket propellant is created in huge industrial mixers, which work the same way the ones in kitchens do, with rotating blades. This puking robot has a purpose: making rocket fuel safely 2018-03-30T04:00:00Z The air bags, linked to nearly two dozen deaths and hundreds of injuries globally, used propellants with ammonium nitrate that can destabilize after prolonged exposure to heat and humidity, leading to explosions, investigations have found. Senators Press Car Executives, Regulator on Explosive Air Bags 2018-03-20T04:00:00Z The air bags used propellants with ammonium nitrate that can destabilize after prolonged exposure to heat and humidity, leading to explosions, investigations have found. More Auto Makers Sued Over Exploding Takata Air Bags 2018-03-14T04:00:00Z The recalled air bags used propellants with ammonium nitrate that can destabilize after prolonged exposure to heat and humidity, leading to explosions, investigations have found. Regulator, Car Executives to Testify at Senate Hearing on Takata Recall 2018-03-13T04:00:00Z To get more power out of its rocket, SpaceX brings its propellants – liquid oxygen and refined kerosene – to unusually low temperatures. Musk’s SpaceX is using a powerful rocket technology; NASA advisers say it could put lives at risk. 2018-05-05T04:00:00Z After MU69 the craft will be low on propellant—less than a quarter of a tank. Newer Horizons: Scientist Pitch Pluto Probe as a Unique Deep-Space Telescope 2018-03-12T04:00:00Z The chemical propellant in the air bag inflators can deteriorate in hot, humid conditions and burn too fast, blowing apart a metal canister and creating shrapnel. Takata air bag recall made compulsory for Australia vehicles 2018-02-27T05:00:00Z Instead, it uses the air in the atmosphere to serve as an oxidizer for the propellant. Get ready for the era of hypersonic flight — at five times the speed of sound 2018-02-21T05:00:00Z Unlike conventional rockets that burn fuel to create thrust, the atomic system uses the reactor to heat a propellant such as liquid hydrogen, which then expands through a nozzle to power the craft. NASA is bringing back Cold War-era atomic rockets to get to Mars 2018-02-15T05:00:00Z The densified propellant “provides greater propellant margin for increased reliability,” the company said in a statement. Musk’s SpaceX is using a powerful rocket technology; NASA advisers say it could put lives at risk. 2018-05-05T04:00:00Z It involves firing up all 27 engines on the Falcon Heavy while the vehicle is on the launchpad to go through the important first steps of flight, such as loading propellant and engine ignition. Shutdown means SpaceX can’t test its Falcon Heavy rocket, creating further delays 2018-01-22T05:00:00Z In a recall notice filed with NHTSA, Ford said data from the two incidents and an anomalous test all occurred with inflators from the same propellant production lot. U.S. senators question extent of Ford 'Do Not Drive' warning on airbag 2018-01-18T05:00:00Z After a successful liftoff, the rocket was traveling at Mach 1, the speed of sound, within 49 seconds, as it burned through propellant at a rate of 1,950 pounds per second. Lost in space? Questions mount over fate of secret satellite as SpaceX pushes ahead 2018-01-12T05:00:00Z "This factor is absolutely huge, especially for very difficult missions that necessitate a lot of propellant such as a Mars flight." NASA is bringing back Cold War-era atomic rockets to get to Mars 2018-02-15T05:00:00Z In other words, should something go wrong on the mission, the rocket would have more propellant to adjust to emergencies. Musk’s SpaceX is using a powerful rocket technology; NASA advisers say it could put lives at risk. 2018-05-05T04:00:00Z Fortunately, most of the booster’s propellant should be exhausted by the time it falls off the rocket. Falling rocket booster explodes near a town in China 2018-01-12T05:00:00Z In a recall notice filed with NHTSA, Ford said data from the two incidents and an anomalous test all occurred with inflators from the same propellant production lot. U.S. senators question extent of Ford 'Do Not Drive' warning on airbag 2018-01-18T05:00:00Z In addition, the outside experts urged additional study of SpaceX’s plans to load propellants into the rocket with the crew already strapped into the capsule. NASA Safety Watchdogs Raise Concerns About SpaceX, Boeing Spacecraft 2018-01-12T05:00:00Z However, the Electron’s engines ignited and then quickly shut off after computers detected that the rocket’s propellant was getting too warm. Spaceflight startup Rocket Lab will try again this month to launch its small rocket to orbit 2018-01-11T05:00:00Z The exercise is meant to run through the major steps of launch, such as loading propellant and engine firing. SpaceX shows off stunning pictures of its Falcon Heavy rocket fully assembled on the launchpad 2018-01-03T05:00:00Z The propellant is available at a higher price from a sole domestic source, closely held American Pacific Corp., controlled by Utah’s billionaire Huntsman family, which founded multinational chemical powerhouse Huntsman Corp. Orbital ATK Is Under White House Pressure for Foreign Purchase of Propellant 2017-12-29T05:00:00Z The old plant that once sat on the site was actually used in the 1960s to build rocket engines that ran on solid propellant for NASA. How a tiny county in Georgia is trying to create the country's newest commercial spaceport 2017-11-28T05:00:00Z Some users also asked about the changes to the design of the propellant tanks, going from a series of spherical tanks to something more elongated. Here’s what Elon Musk revealed about the ITS and SpaceX’s Mars ambitions in his Reddit AMA 2017-10-15T04:00:00Z He advocated for the use of mace or other debilitating spray propellants to immobilize suspects and the use of paint pellets fired from guns to identify fleeing suspects and getaway cars. Arnold Sagalyn, who assisted crime-fighter Eliot Ness, dies at 99 2017-09-14T04:00:00Z A June 2016 rocket landing failed when the booster ran out of propellant. New SpaceX Video Shows How Not to Land a Rocket 2017-09-14T04:00:00Z As it is, those propellants are almost exhausted and Nasa is determined the spacecraft will not be permitted to just drift around Saturn uncontrolled; it must be disposed of properly and fully. Saturn probe to set up death plunge 2017-09-11T04:00:00Z It contained smokeless propellant, which is normally found in firearms ammunition and made of nitroglycerin and nitrocellulose. Nadeem Muhammad convicted of having pipe bomb in luggage at U.K. airport 2017-08-08T04:00:00Z Several government agencies collaborated on the testing last year at the Radford Army Ammunition Plant, which the state says is the only active military propellant manufacturing center in the country. Drone testing finds some elevated pollutants at Army plant 2017-08-07T04:00:00Z Security officers found a device made from batteries, tape, a marker pen, pins and a smokeless propellant at Manchester Airport on 30 January. Manchester Airport police 'thought pipe bomb was not viable' - BBC News 2017-07-31T04:00:00Z The six entities being sanctioned contribute to Iran’s liquid propellant ballistic missiles, the Treasury Department said, including development and manufacturing of engines, launchers, guide-and-control systems and ground support as well as the liquid propellant itself. US hits Iran with more sanctions in response to space launch 2017-07-28T04:00:00Z The company used a variety of chemical agents to keep the propellant dry in its devices over the years, with some combinations showing a greater propensity to fail than others, federal regulators said. Takata Expands Recall Again, Citing New Airbag Hazard 2017-07-11T04:00:00Z The craft will weigh more than 4 tonnes, including 1.4 tonnes of propellant that will be used to power it on a complex journey round the solar system en route to Mercury. Flight into the furnace of Mercury could bring us closer in hunt for alien life 2017-07-08T04:00:00Z The threat grew worse last year as North Korea began using solid fuels after decades of relying on liquid propellants to power its big rockets and missiles. Tiny Satellites From Silicon Valley May Help Track North Korea Missiles 2017-07-06T04:00:00Z That includes developing a motor that uses solid propellants for those missiles as well as the ability to launch them from submarines. How Close Is North Korea to Targeting the U.S. with Nuclear Missiles? 2017-07-05T04:00:00Z He also patented a new kind of pyrotechnic device that combusts smaller amounts of black powder, or a smokeless propellant, more efficiently to launch fireworks into the sky. How Hollywood and the Army are shaping the future of fireworks 2017-07-04T04:00:00Z They use liquid oxygen and kerosene — propellants that are much less toxic and corrosive than what previous Long March rockets used. China’s most powerful rocket failed yesterday. What does that mean for the country’s space plans? 2017-07-03T04:00:00Z Takata’s bankruptcy is due to its airbags’ use of chemicals propellants which became unstable after long-term exposure to heat and humidity. Takata’s bankruptcy is a result of familiar failings 2017-06-29T04:00:00Z The ships would also fly back from Mars, using their nine Raptor engines and methane-based propellant that was manufactured on the Red Planet. Elon Musk Publishes Plans for Colonizing Mars 2017-06-16T04:00:00Z Land-based missiles with solid propellants can be readied for launch much faster, before enemy satellites or drones spot them. Why North Korea is testing so many missiles 2017-06-15T04:00:00Z Most propellant tanks are equipped with small hatches, and the company plans to add docking tunnels to these hatches to allow crews to get inside the tanks. How one company wants to recycle used rockets into deep-space habitats 2017-06-14T04:00:00Z An option now used in spacecraft is the ion drive, which generates thrust by using electricity to accelerate electrically charged ion propellants. Could Tiny Fusion Rockets Revolutionize Spaceflight? 2017-06-12T04:00:00Z The process provides less thrust than a standard chemical engine, but saves substantially on propellant mass. ViaSat-2: Satellite goliath goes into orbit - BBC News 2017-06-01T04:00:00Z But Bailey says Accion's ion thrusters are the first to use a liquid propellant — a more-efficient design than a conventional thruster that requires no valves, pipes, pumps or separate ionization chamber. Energy: Powering change : Nature : Nature Research 2017-05-16T04:00:00Z The Baton Rouge company burned all 7,800 tons of the unstable artillery propellant and 160 tons of nitrocellulose abandoned at Camp Minden. All unstable artillery propellant at Camp Minden burned 2017-04-21T04:00:00Z Or if the rocket uses cryogenic propellants, as many modern vehicles do, then the materials will boil off after a few days as the stage orbits Earth and is heated up by the Sun. How one company wants to recycle used rockets into deep-space habitats 2017-06-14T04:00:00Z Rockets fly by hurling materials known as propellants away from them. Could Tiny Fusion Rockets Revolutionize Spaceflight? 2017-06-12T04:00:00Z In “Silicon Valley,” Richard’s efforts to avoid “ending up there” act as the propellant for the show’s drama. Mike Judge, the Bard of Suck 2017-04-13T04:00:00Z The United States is dependent on Russia’s propellant module to keep the station in orbit. Russia open to extending international space station partnership: agency chief 2017-04-04T04:00:00Z “The Hacker” throbs with modular synthesizer tones, a propellant rhythm and sheets of static. California Sounds: Tips on new L.A. tracks from Kendrick Lamar, NIIA, Johnny Jewel and R. Stevie Moore & Jason Falkner 2017-04-03T04:00:00Z But while police were trying to reassure the public, social media, which has served as a propellant for fake news, veered toward conspiracy theories. No, there is no spike in missing girls in DC; how tweets created a crisis 2017-04-02T04:00:00Z And Ford chose Takata’s inflaters over the objections of the automaker’s own inflater expert, who opposed the use of Takata’s propellant because of its instability and sensitivity to moisture, the filing said. Suit Says Carmakers Knew of Takata Airbag Hazard for Years 2017-02-27T05:00:00Z GAO investigators found that the Falcon 9 turbopumps, which are part of the system that delivers propellants to the engine, have blades that are prone to cracking, the newspaper said. SpaceX says fix underway for rocket turbine wheel cracking 2017-02-02T05:00:00Z Huge quantities of explosives and propellants are also thought to have been imported through “a robust supply chain extending from Turkey, through Syria, to Mosul.” The Desperate Battle to Destroy ISIS 2017-01-29T05:00:00Z |
| 随便看 |
|
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。