| 单词 | micrometeoroid |
| 例句 | One is that micrometeoroid dust pollutes and darkens the rings’ pristine water ice. Saturn’s Youthful Rings and Newfound Moons Put It in Stargazing Spotlight 2023-05-19T04:00:00Z "No country in the world has a surveillance system capable of tracking micrometeoroids of this size - about 1 millimetre." Russia says stranded astronauts to return from ISS in September 2023-02-21T05:00:00Z The spacecraft’s mission is to provide a trip home for a trio of Russian and American astronauts whose original ride was damaged during what was probably a micrometeoroid strike in December. Space and Astronomy in February: What to Expect 2023-02-01T05:00:00Z The new craft replaces the Soyuz MS-22 module, which was damaged by a micrometeoroid and which began leaking coolant on Dec. 14. Russia to launch replacement Soyuz module to International Space Station in February 2023-01-11T05:00:00Z Borisov said Wednesday that the analysis confirmed the leak was caused by a micrometeoroid. Russia to launch new capsule to return space station crew 2023-01-11T05:00:00Z More specifically, the C3 mirror has a bright white dent where there should be gold at the location where the micrometeoroid made impact. The James Webb telescope has "uncorrectable" damage from a micrometeoroid 2022-07-20T04:00:00Z They must be sturdy enough to bring the chance of micrometeoroids piercing the exteriors down to just one in 2,500. Astronauts Will Wear These Spacesuits on the Moon—And Maybe Mars, Too 2022-07-14T04:00:00Z Before the incident was reported, four smaller micrometeoroids had already hit the telescope. Five Things Learned From the Webb Telescope’s First Images 2022-07-13T04:00:00Z The micrometeoroid strike and the leaking coolant were discovered by Roscosmos cosmonauts preparing to do a spacewalk. Russia to launch replacement Soyuz module to International Space Station in February 2023-01-11T05:00:00Z It’s comprised of 18 segments, one of which was smacked by a bigger than anticipated micrometeoroid in May. Far out: NASA space telescope’s 1st cosmic view goes deep 2022-07-11T04:00:00Z "The micrometeoroid which hit segment C3 in the period 22—24 May 2022 UT caused significant uncorrectable change in the overall figure of that segment," the report explains. The James Webb telescope has "uncorrectable" damage from a micrometeoroid 2022-07-20T04:00:00Z Adding to that stress, one of JWST’s 18 mirror segments was struck by a larger than expected micrometeoroid in May, leaving a small dimple. How engineers got the world’s most powerful space telescope ready to do science 2022-07-07T04:00:00Z These micrometeoroids, no larger than a grain of sand, are often little pieces of asteroids or comets that have broken away and are now orbiting around the Sun. Why getting hit by space dust is an unavoidable aspect of space travel 2022-06-20T04:00:00Z One mirror segment of NASA’s James Webb Space Telescope was struck by a micrometeoroid last month, leading to a “marginally detectable effect” on its data collection, the agency said last week. News at a glance: Webb telescope dinged, U.S.-Russia research paused, and NASA’s UFO study 2022-06-15T04:00:00Z Four previous micrometeoroid strikes to the mirror were smaller. Far out: NASA space telescope’s 1st cosmic view goes deep 2022-07-11T04:00:00Z Dr. Thomas Zurbuchen, Associate Administrator at NASA's Science Mission Directorate, foreshadowed the agency's ability to move beyond this setback when he tweeted in June about early reports regarding micrometeoroid impacts on the telescope. The James Webb telescope has "uncorrectable" damage from a micrometeoroid 2022-07-20T04:00:00Z NASA’s next-generation space observatory has sustained its first noticeable micrometeoroid impact less than six months after launch, but the agency isn’t too concerned. Webb Telescope's Giant Mirror Struck by Micrometeoroid 2022-06-09T04:00:00Z Knowing this, spacecraft engineers will construct their vehicles with certain protections to shield against micrometeoroid strikes. Why getting hit by space dust is an unavoidable aspect of space travel 2022-06-20T04:00:00Z The damage inflicted by the dust-sized micrometeoroid is producing a noticeable effect in the observatory's data but is not expected to limit the mission's overall performance. James Webb Space Telescope hit by tiny meteorite 2022-06-09T04:00:00Z NASA’s $10 billion James Webb Space Telescope has had a rough encounter with an extraterrestrial hazard: It got dinged by a micrometeoroid. Webb Telescope hit by micrometeoroid but sustains no major damage 2022-06-08T04:00:00Z However, because there have been few spacecraft sent to this point in space — known as the L2 point, short for LaGrange Point — astronomers have less knowledge of the micrometeoroid risk in the region. The James Webb telescope has "uncorrectable" damage from a micrometeoroid 2022-07-20T04:00:00Z “Since launch, we have had four smaller measurable micrometeoroid strikes that were consistent with expectations, and this one more recently that is larger than our degradation predictions assumed.” Webb Telescope's Giant Mirror Struck by Micrometeoroid 2022-06-09T04:00:00Z If the shield is hit by a micrometeoroid, the particle will pass through the first layer and fragment even further, so the second layer is hit by even smaller particles. Why getting hit by space dust is an unavoidable aspect of space travel 2022-06-20T04:00:00Z The possibility of micrometeoroid hits was anticipated and contingencies like this were incorporated into the choice of materials, the construction of components and the different modes of operating the telescope. James Webb Space Telescope hit by tiny meteorite 2022-06-09T04:00:00Z The exact size of micrometeoroid is not known, but it may have been no bigger than a grain of sand, said Heidi Hammel, a planetary astronomer who has long been involved with the telescope. Webb Telescope hit by micrometeoroid but sustains no major damage 2022-06-08T04:00:00Z Yet that pep may have dissipated since last week in light of the recent news that the telescope, despite its immense technological sophistication, has suffered uncorrectable damage due to a micrometeoroid. The James Webb telescope has "uncorrectable" damage from a micrometeoroid 2022-07-20T04:00:00Z Some micrometeoroid impacts can be predicted, officials wrote. Webb Telescope's Giant Mirror Struck by Micrometeoroid 2022-06-09T04:00:00Z There are even interstellar micrometeoroids that are just passing through our Solar System from more distant cosmic neighborhoods. Why getting hit by space dust is an unavoidable aspect of space travel 2022-06-20T04:00:00Z A micrometeoroid is typically a small fragment of an asteroid, usually smaller than a grain of sand. NASA’s new powerful space telescope gets hit by larger than expected micrometeoroid 2022-06-08T04:00:00Z The telescope traveled for 29 days to reach its outpost, an orbital position known as L2 where other telescopes have operated safely and offered scientists data on the frequency of micrometeoroids. Webb Telescope hit by micrometeoroid but sustains no major damage 2022-06-08T04:00:00Z Made by ILC Dover, they had multiple layers to protect the wearer from heat, abrasion and micrometeoroids which could puncture the suit. Upcoming Moon missions spur the search for new spacesuits 2021-11-25T05:00:00Z “It’s kind of a double whammy, because it’s not only going to protect you from radiation but also protect you from micrometeoroid impacts,” she says. Can a Moon Base be Safe for Astronauts? 2020-10-22T04:00:00Z “It gets down to the 4-yard line, compared to Earth being all the way at one end zone,” says Malaspina, who has focused on studying micrometeoroid impacts on Parker Solar Probe. Why getting hit by space dust is an unavoidable aspect of space travel 2022-06-20T04:00:00Z The space agency also did a combination of simulations and ground testing with mirror samples to determine how to best strengthen the mirrors to withstand micrometeoroid impacts. NASA’s new powerful space telescope gets hit by larger than expected micrometeoroid 2022-06-08T04:00:00Z Paul Geithner, a deputy project manager for the telescope at NASA’s Goddard Space Flight Center in Greenbelt, Md., said the team is using this incident to learn more about micrometeoroids. Webb Telescope hit by micrometeoroid but sustains no major damage 2022-06-08T04:00:00Z Given these two figures, and the bombardment rate by micrometeoroids, the rings must be young, the idea goes. Saturn’s Rings May Be Ancient After All 2019-09-17T04:00:00Z Other times, they used what looked like hedge shears to cut first through the insulation that was the spacecraft’s outer layer, and then into an aluminum micrometeoroid shield beneath that. During Seven-Hour Spacewalk, Russian Astronauts Gather Clues to Orbital Mystery 2018-12-11T05:00:00Z The Parker Solar Probe is giving us a better understanding of micrometeoroids around the Sun, but we have a pretty good understanding of the population around Earth, too. Why getting hit by space dust is an unavoidable aspect of space travel 2022-06-20T04:00:00Z Still, the agency is forming an engineering team to come up with ways to potentially avoid or lessen the effects of micrometeoroid strikes of this size. NASA’s new powerful space telescope gets hit by larger than expected micrometeoroid 2022-06-08T04:00:00Z For instance, these probes will need to be extra hardened to withstand any collisions with debris in space, notably micrometeoroids. As satellite constellations grow larger, NASA is worried about orbital debris 2018-09-28T04:00:00Z An elliptical orbit, for instance, suggests that a particle is a natural micrometeoroid, whereas a circular orbit implies that it probably sloughed off a satellite. NASA sensor to study space junk too small to be seen from Earth 2017-11-29T05:00:00Z "What's happened to that after 45 years in the space environment? Is it like new or in shreds from micrometeoroids?" he asks. Here's who could win the $20 million XPrize for roving on the moon—but will any science get done? 2016-12-22T05:00:00Z Whenever a micrometeoroid hits the upper atmosphere around our planet, it burns up and creates meteoric smoke — fine smoke particles that can be measured. Why getting hit by space dust is an unavoidable aspect of space travel 2022-06-20T04:00:00Z In fact, the news of this micrometeoroid comes just a month before a huge milestone for the mission. NASA’s new powerful space telescope gets hit by larger than expected micrometeoroid 2022-06-08T04:00:00Z Lunar dust consists of rock pulverised to the consistency of talcum powder by micrometeoroid impacts. How to solve the lunar dust problem 2016-11-10T05:00:00Z The Soyuz also boasts more photovoltaic cells on its solar panels, which will provide added power, and additional shielding against micrometeoroid debris. Watch three astronauts launch to the International Space Station this evening 2016-07-06T04:00:00Z Members of the station crew also will install sensors to monitor orbital debris and micrometeoroid impacts. Experimental inflatable module attached to space station 2016-04-16T04:00:00Z Current micrometeoroid modeling will try to predict things like how debris spreads through an orbit if an asteroid or comet breaks apart. Why getting hit by space dust is an unavoidable aspect of space travel 2022-06-20T04:00:00Z BEAM, made of layers of fabrics and covered in a flexible, Kevlar-like material, also will be outfitted with sensors to monitor orbital debris and micrometeoroid impacts. Inflatable habitat heading for test run on space station 2016-04-08T04:00:00Z The capsule was struck by micrometeoroids, but that was anticipated. NASA's Orion spacecraft back in Florida after test flight 2014-12-18T05:00:00Z Astronauts would not have go out and repair damage from a micrometeoroid that strikes their spaceship if the material does so for itself, she said. Researching “super dust” and other materials that could reduce the cost of air and space travel 2014-02-11T14:56:55Z Engineers suspect a micrometeoroid or tiny piece of space debris may have punched a hole no bigger than the width of a hair into one of the station's radiators. Spacewalkers tackle coolant leak on space station 2012-11-01T20:09:10Z A typical shuttle flight carried a roughly 1-in-250 chance of catastrophic collision with a micrometeoroid or, more likely, with orbital debris. U.S. Taking Initial Steps to Grapple with Space Debris Problem 2011-08-31T18:45:00.250Z Researchers will examine them to determine the extent of micrometeoroid and orbital debris damage. NASA Shuttle Fleet Finds New Life in Displays, Parts 2011-08-02T16:15:05.433Z The threat of a collision with micrometeoroids is small, but not zero. News Analysis: As Space Priorities Shift, Orbiting Station Takes On a Central Role 2010-08-04T01:40:00Z Outside the straps, alternating layers of aluminized fabric and foam absorb and disperse the impacts of micrometeoroids, providing better protection than metal structures, Dr. Schneider said. Entrepreneurs Enter the Commercial Space Race 2010-06-07T22:19:00Z |
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