时间:2025-07-19 06:19:06 来源:网络整理编辑:熱點
In May 2022, a potent temblor hit Mars.The quake, at 4.7 magnitude, would cause dishes to rattle and
In May 2022, a potent temblor hit Mars.
The quake, at 4.7 magnitude, would cause dishes to rattle and a building's wooden frames to creak on Earth, but wouldn't be regionally catastrophic. Yet on Mars — a world much more geologically quiet — such an event is still considered a monster quake, at the limit of what planetary scientists would expect to record on the arid, desert world.
Since the temblor, scientists have poured over the event, recorded by NASA's InSight lander, its now-retired geologic probe. Some researchers supposed such a large quake came from a meteor slamming into Mars, as the planet is blanketed in meteor impacts. Yet new research, published in the peer-reviewed science journal Geophysical Research Letters, concludes that the source of the major marsquake came from deep inside the planet.
SEE ALSO:NASA rover makes adventurous trip, then snaps stunning Mars pictureUnlike Earth, Mars doesn't have erupting volcanoes or any molten rock brewing near the surface. It's unlikely to have any colossal structural, or tectonic, plates gradually moving around atop hot, circulating rock, which on Earth creates mountain ranges and triggers quakes.
Yet Mars may still have significant activity deep underground, as the planet's ancient rocky crust continues to evolve.
"We still think that Mars doesn’t have any active plate tectonics today, so this event was likely caused by the release of stress within Mars’ crust. These stresses are the result of billions of years of evolution, including the cooling and shrinking of different parts of the planet at different rates," Ben Fernando, who researches planetary geophysics at the University of Oxford and led the new study, said in a statement.
Tweet may have been deleted
Fernando and the research team used satellite imagery to scour the surface of Mars. They looked for a potential meteorite culprit that could have triggered such potent Martian shaking, receiving imagery contributions from the likes of the European Space Agency, the Chinese National Space Agency, and the Indian Space Research Organisation. They scrutinized the landscape for fresh impacts or dust clouds just after May 4, 2022.
None were found.
"We are willing to collaborate with scientists around the world to share and apply this scientific data to get more knowledge about Mars, and are proud to have provided data from the colour imagers on Tianwen-1 to contribute to this effort," Jianjun Liu, of the National Astronomical Observatories, Chinese Academy of Sciences, said in a statement.
Want more scienceand tech news delivered straight to your inbox? Sign up for Mashable's Light Speed newslettertoday.
NASA's InSight lander, which ran out of power in 2022, recorded over 1,300 marsquakes. In future missions, planetary scientists want to continue to probe Mars' interior and record quakes, improving our understanding of what's transpiring below the Red Planet's surface. There might even be places that are prone to relatively big quakes.
"We still do not fully understand why some parts of the planet seem to have higher stresses than others, but results like these help us to investigate further," Fernando said. "One day, this information may help us to understand where it would be safe for humans to live on Mars, and where you might want to avoid!"
This story has been updated with more information about marsquakes.
TopicsNASA
Nancy Pelosi warns colleagues after info hacked2025-07-19 05:58
無解世一鋒 !萊萬20分鍾連入3球 背靠背主場戴帽2025-07-19 05:35
20日賠率:皇馬客勝保持爭冠態勢 曼城連勝不止步2025-07-19 05:08
李鐵抵集訓地陳戌源有望探班 學習判罰規成國足必修2025-07-19 04:48
The five guys who climbed Australia's highest mountain, in swimwear2025-07-19 04:42
海港董事長 :國足利益高於俱樂部 做弘揚正能量的店小二2025-07-19 04:36
足協主席陳戌源回應球員參加吐槽大會:落後就要挨打2025-07-19 04:17
李昂:海港隊非常穩定且有誌向 新賽季目標衝擊冠軍2025-07-19 04:14
U.S. government issues warning on McDonald's recalled wearable devices2025-07-19 04:07
英足總公布性侵調查報告:692名小球員受害 小貝都未能幸免2025-07-19 03:43
Snapchat is about to explode in popularity, report says2025-07-19 06:09
巴薩更衣室力挺科曼留任 列三大功績 首功激活梅西2025-07-19 06:07
反轉?博格巴願續約留在曼聯 但紅魔至今未開合同2025-07-19 05:44
“拉師傅踢破首相大門”壁畫引關注 與免費午餐有關2025-07-19 05:10
Carlos Beltran made a very interesting hair choice2025-07-19 05:01
太瘋狂 !門將撲點成功 滑跪慶祝“羞辱”判點主裁2025-07-19 04:41
職業聯盟將推出17人評議委員會 確保新賽季裁判公平公正2025-07-19 04:21
足協主席挨罵曾打退堂鼓 正視裁判問題魯能沉冤得雪?2025-07-19 04:18
Whyd voice2025-07-19 03:59
無解世一鋒 !萊萬20分鍾連入3球 背靠背主場戴帽2025-07-19 03:43