时间:2025-07-12 15:39:57 来源:网络整理编辑:知識
Touchdown.Earlier in October, NASA successfully collected rocky samples from asteroid Bennu, a relat
Touchdown.
Earlier in October, NASA successfully collected rocky samples from asteroid Bennu, a relatively small, well-preserved space rock some 200 million miles from Earth. On Friday, NASA released footage of the spacecraft, OSIRIS-REx, approaching and briefly touching down on the rubbly Bennu. The events, seen in the space agency's tweet below, show OSIRIS-REx carefully descending to Bennu's rock-strewn surface.
The spacecraft collected over 60 grams, or about two ounces, of fine-grained material during the quick touchdown, which lasted under 16 seconds. To planetary scientists, this asteroidal stuff is invaluable: Bennu hasn't changed much since the formation of our solar system (4.5 billion years ago), so the samples provide a glimpse into our past, and how our planets formed.
"They are like time capsules from the beginning of our solar system," Richard Binzel, an astronomer at the Massachusetts Institute of Technology and a scientist working on the OSIRIS-REx mission, told Mashable. "This is like sampling the original ingredients for making planets."
(The first ambitious mission to carry asteroid samples back to Earth, Japan's Hayabusa mission, returned in 2010.)
Tweet may have been deleted
NASA called the endeavor a "Touch-And-Go (TAG) sample collection event." The maneuver was indeed a quick "tag" of Bennu's surface. OSIRIS-REx carefully approached the asteroid for over four hours before briefly touching down and firing nitrogen gas to stir up fragments into Bennu's sample collector. Then, the spacecraft promptly blasted away.
SEE ALSO:The space race forged immortal rock and roll guitarsOSIRIS-REx captured so much surface material that some of the fine grains even escaped before the collector was stowed away for the return trip home. The spacecraft is expected to arrive on Earth with the invaluable cargo on Sep. 24, 2023.
Fyvush Finkel, Emmy winner for 'Picket Fences,' dies at 932025-07-12 15:39
古天樂“穿浴袍”現身薇婭直播間,分享酷古品牌創立初衷2025-07-12 15:27
CARNAVAL DE VENISE(威尼斯狂歡節)X曹曦文丨女兒心中的女一號2025-07-12 14:36
林鵬新劇《玫瑰行者》重慶殺青 國內首部女臥底題材2025-07-12 14:25
Slack goes down again, prompting anxiety everywhere2025-07-12 13:42
虎牙虛擬偶像集結電波之夜,技術領跑內容生態新方向2025-07-12 13:36
大家還記得曾經爆火全網的黃文煜小盆友嗎 ?2025-07-12 13:32
抖音直播群星寵粉夜完美收官 口碑爆棚引好評2025-07-12 13:26
U.S. pole vaulter skids to a halt for national anthem2025-07-12 13:12
吳亦凡×《王者榮耀》背後 是一場音樂與遊戲的跨界共振2025-07-12 12:55
'The Flying Bum' aircraft crashes during second test flight2025-07-12 15:38
“胖五”問天 ,宇宙最強音《脈衝星》給了“回複”,你聽過嗎?2025-07-12 15:05
虛擬偶像現身唐探3發布會,中國絆愛本土化新定義2025-07-12 14:54
樂堡啤酒新五福 新年祝福玩出新花樣2025-07-12 14:49
Xiaomi accused of copying again, this time by Jawbone2025-07-12 14:36
北京衛視京都念慈菴《了不起的長城》開長城攝影展2025-07-12 14:19
展現科技的想象和反思——“海之聲”新年演出季多彩活動凸顯創意創新2025-07-12 13:52
輔樂文化傾力承辦網易逆水寒音樂會,未來創新試水全產業化發展2025-07-12 13:35
Two astronauts just installed a new parking spot on the International Space Station2025-07-12 13:34
用抖音美妝主播大璐璐安利的遮瑕液,三步打造霧麵逆齡妝 !2025-07-12 13:19