| 单词 | micrometeorite |
| 例句 | As time goes on, even the arrival of micrometeorites—fine dust from space—stirs up and covers over the rays, and they gradually disappear. Cosmos 1980-01-01T00:00:00Z Members of the School of Physics and Astronomy from the University of Kent are hoping to find micrometeorites - dust sized particles which have made it through the earth's atmosphere. Canterbury: Scientists search cathedral roof for cosmic dust 2023-09-04T04:00:00Z Though Roscosmos said the information was undergoing analysis, the agency reported that the preliminary data obtained contained information about the chemical elements of the lunar soil and that its equipment had registered a “micrometeorite impact.” Russia’s Luna-25 spacecraft suffers technical glitch in pre-landing maneuver 2023-08-19T04:00:00Z It added that its equipment had registered "the event of a micrometeorite impact". Russia's Luna-25 spacecraft produces first results, space agency says 2023-08-19T04:00:00Z It was not clear whether they were hit by micrometeorites or had manufacturing defects. U.S. is concerned about rivals’ space threats, leaked documents show 2023-04-25T04:00:00Z The telescope had barely set up shop when it was pelted by a larger-than-expected micrometeorite, which left a tiny crater in one of the telescope’s mirror segments. From Bullets to ‘Bird Residue,’ the Many Trials of Telescopes 2023-04-18T04:00:00Z That would protect its mirror from micrometeorites of the sort that have already struck JWST. NASA unveils initial plan for multibillion-dollar telescope to find life on alien worlds 2023-01-09T05:00:00Z Roscosmos said the leak might have been caused by a micrometeorite or a piece of space junk striking one of the capsule’s external radiators. Russia may expedite launch of next space capsule after leak 2022-12-19T05:00:00Z A Russian space official said last Thursday a micrometeorite could have caused the leak. Space crew using robotic arm to inspect damaged capsule 2022-12-18T05:00:00Z “Everything at the surface is subject to harsh radiation, possible meteorite or micrometeorite bombardment and really large day-to-night temperature swings,” she said. House-Hunting on Mars Has Already Started 2022-10-29T04:00:00Z Instead, the surface “had been eroded by micrometeorites,” he said. Smithsonian Air and Space Museum to reopen next week 2022-10-06T04:00:00Z Random meteoroids of this nature strike Earth constantly: scientists estimate between 10 million and 1 billion kilograms of meteorites hit Earth every year, most of them tiny micrometeorites. Why one Harvard scientist believes alien technology may be sitting on the ocean floor 2022-08-31T04:00:00Z Because constant bombardment by solar wind, radiation and micrometeorites breaks the soil apart, the size of grains found in a crater could give an estimate of its age. South Korea Is Scouting Out the Moon, With More Missions to Come 2022-08-05T04:00:00Z The mirror has been dinged by a handful of micrometeorites—that was expected but one was larger than models predicted and operators are working to mitigate its impact. Webb telescope wows with first images 2022-07-11T04:00:00Z Moon dirt is full of tiny, glass fragments from micrometeorite impacts that got everywhere in the Apollo lunar landers and wore down the moonwalkers’ spacesuits. Scientists grow plants in lunar dirt, next stop moon 2022-05-12T04:00:00Z Last year, a micrometeorite shot right through the station’s robotic arm, leaving a bullet-size hole. The Pentagon is looking for garbage collectors in space 2022-01-27T05:00:00Z Jupiter’s gravity acts like a gate pushing the micrometeorites out of its orbit — similar to how it may have bullied other ancient planets out of the solar system. NASA releases new photos of Jupiter — and a recording of its moon that sounds like R2-D2 2021-12-19T05:00:00Z Multiple layers also better protect against micrometeorite hits. EXPLAINER: Veteran Hubble vs. new Webb space telescope 2021-12-23T05:00:00Z The background seismic data will also reveal the rate at which micrometeorites bombard the surface—essential information for shielding long-term lunar inhabitants. NASA-funded startups will soon put a fleet of landers on the Moon 2021-09-08T04:00:00Z With clean sampling techniques and accurate ages for dust deposits, the researchers calculated around 5,200 metric tons of micrometeorites fall to Earth every year. Antarctic Study Shows How Much Space Dust Hits Earth Every Year 2021-04-29T04:00:00Z The facility is aging and at constant risk of impacts from space debris and micrometeorites. The International Space Station Is Doomed to Die by Fire 2020-11-03T05:00:00Z Most of these molecules are likely stored in the voids between moon dust and other particles or entombed in the glassy residue of of micrometeorite impacts. Moon holds more water in more places than ever thought 2020-10-26T04:00:00Z She suspects they were protected in pockets between grains of dust or within glass beads, the size of pencil tips, formed by micrometeorite impacts. Pair of studies confirm there is water on the moon 2020-10-26T04:00:00Z This is because it needs to protect the wearer from temperature extremes outside the walls of the spacecraft, and provide some shielding against micrometeorites and other small particles of space debris. Nasa SpaceX launch: Evolution of the spacesuit 2020-05-27T04:00:00Z “There are a lot more micrometeorites falling on Earth than larger meteorites, so I got one of the most crazy ideas I’ve had, I think,” Schmitz said. Asteroid Dust Triggered an Explosion of Life on Ancient Earth 2019-09-19T04:00:00Z In older craters, the boulders, battered by micrometeorites for millions of years, turn to dust, which cools quickly at night. What Happened to Earth’s Ancient Craters? Scientists Seek Clues on the Moon’s Pocked Surface 2019-01-17T05:00:00Z Rocks thrown up by asteroid impacts are steadily ground down by the constant rain of micrometeorites that pours down on the moon. Asteroid strikes 'increase threefold over last 300m years' 2019-01-17T05:00:00Z Damage to the Space Shuttle Endeavour from a collision with piece of space debris or a micrometeorite.Credit: The quest to conquer Earth’s space junk problem 2018-09-04T04:00:00Z On the moon, decades of extreme temperatures, ultraviolet radiation and micrometeorites have probably disintegrated the flag entirely, scientists say, and the bombardment of unfiltered sunlight has probably bleached flags left on subsequent missions stark white. Why Neil Armstrong’s sons don’t think the biopic ‘First Man’ is anti-American 2018-09-02T04:00:00Z They wanted something more difficult to find than fossilized meteorites: micrometeorites, which, like their larger siblings, carry the mineral chromite. Asteroid Dust Triggered an Explosion of Life on Ancient Earth 2019-09-19T04:00:00Z "A micro-fracture was found; most likely it is damage from the outside. The design engineers believe it is the result of a micrometeorite," he said. Astronauts tackle leak on space station 2018-08-30T04:00:00Z He added: “A micro-fracture was found, most likely it is damage from the outside. The design engineers believe it is the result of a micrometeorite.” International Space Station crew repair leak in Russian craft 2018-08-30T04:00:00Z Russian officials say the pressure leak was detected Wednesday night and may be the result of a micrometeorite strike. Air leaking from Russian side of International Space Station 2018-08-30T04:00:00Z Like every planet in our solar system, it receives a steady rain of carbon-rich micrometeorites and dust from space. Curiosity Rover Uncovers Long-Sought Organic Materials on Martian Surface 2018-06-07T04:00:00Z So, it’s a two-year journey where weightlessness, cosmic radiation, and micrometeorites will all be problems. There's Only One Way For Humanity to Survive. Go To Mars. 2018-03-03T05:00:00Z Understanding which types of roofs - where most micrometeorites are found - are best for stardust hunting is key to Peterson’s hobby. University of Minnesota technology helps in stardust hunt 2018-02-24T05:00:00Z There's very little chance of the Tesla hitting other asteroids, but over time, the vehicle's appearance might change "dramatically" as it's peppered by very tiny micrometeorites. Musk's car to drift for millions of years 2018-02-14T05:00:00Z How the Voyagers’ ultimate demise occurs—whether it’s death by a thousand micrometeorite impacts, or one large improbable collision—remains a mystery. Voyager at 40: Where Will the NASA Spacecraft Go Next? 2017-09-06T04:00:00Z “Still, I didn’t find a single micrometeorite,” he recalled. Flecks of Extraterrestrial Dust, All Over the Roof 2017-03-10T05:00:00Z They were able to confirm that the composition of these matched that of micrometeorites, which tend to be rich in olivine, a greenish semi-precious gemstone. Finding micrometeorites in city gutters 2016-12-10T05:00:00Z “That’s the thing about micrometeorites is that it’s still a very . budding . field, even outside of amateurs, so I think there’s definitely some potential,” Colvin said. University of Minnesota technology helps in stardust hunt 2018-02-24T05:00:00Z Also, a ring-shaped galaxy shows off its stunning halo, and scientists marvel at the oldest micrometeorites ever found. Week's Best Space Pictures: Smoky Trail and Solar Streamers Their prey, however, were not bubbles but micrometeorites. The curious lightness of an early atmosphere 2016-05-12T04:00:00Z In the Geology paper, the scientific team reports the discovery of about 500 micrometeorites — collected mainly from roof gutters in Norway — and tells of the detailed analysis of 48 of the extraterrestrial specks. Flecks of Extraterrestrial Dust, All Over the Roof 2017-03-10T05:00:00Z Most tellingly, Mr Larsen’s samples contained iron and nickel alloys common in micrometeorites, but rare in Earth-bound rocks because these metals oxidise rapidly. Finding micrometeorites in city gutters 2016-12-10T05:00:00Z The micrometeorites they found are almost a billion years older than the next oldest samples. World’s Oldest Space Pebbles Found in Australia 2016-05-11T04:00:00Z By melting the ice and filtering the water, they collected more than 3000 micrometeorites, tiny particles from space that were 10 microns in diameter or larger. Comet dust found in Antarctica 2014-12-05T05:00:00Z “These are ongoing experiments in long-duration lunar exposure to temperature variations, dust, micrometeorite impacts,” he says. Should the Apollo Lunar Landing Sites Be Protected? 2014-07-19T04:00:00Z On its doomed voyage, the robot studied the moon’s thin atmosphere and the moon dust stirred by impacting micrometeorites. NASA’s Lunar Satellite Intentionally Crashes Into Back Side of the Moon 2014-04-18T15:17:15Z As a consequence, when asteroids collide, some of it is liberated—and a small fraction of that material eventually falls to Earth as micrometeorites. Finding micrometeorites in city gutters 2016-12-10T05:00:00Z And despite their age, the 60 micrometeorites the team recovered appear to be in good shape, retaining the telltale signs of extraterrestrial origin and a high-oxygen burn. World’s Oldest Space Pebbles Found in Australia 2016-05-11T04:00:00Z Analyzing the micrometeorites one by one under a stereomicroscope over a period of 5 years yielded more than 40 particles with the characteristics of comet dust. Comet dust found in Antarctica 2014-12-05T05:00:00Z It’s also possible that the balls have been struck by micrometeorites, which are tiny bits of cosmic dust. Lunar artifacts: Golf balls, boots, urine bags await treasure hunters 2013-08-05T18:54:27Z Possibilities include a micrometeorite strike or a leaky seal. Astronauts Replace a Pump, Hoping to Stop Leak 2013-05-11T16:16:02Z It reveals a ring created by a micrometeorite that struck it. What Is It? 2011-10-23T12:15:00.207Z Then on Friday, the shuttle will be inspected for any signs of micrometeorite damage. Astronauts Celebrate 2 Big Space Anniversaries 2010-04-12T15:10:00Z The debris from the mountains includes micrometeorites and tiny particles called spherules. Clues to Antarctica space blast 2010-03-03T16:55:00Z You know, of course, that we are constantly being bombarded by cosmic dust, the micrometeorites that always prove troublesome to the Earth satellites and space platforms. The Secret of the Ninth Planet |
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