时间:2026-01-07 14:41:56 来源:网络整理编辑:時尚
Our solar system is a dynamic, evolving realm of space.A powerful camera aboard NASA's Mars Reconnai
Our solar system is a dynamic, evolving realm of space.
A powerful camera aboard NASA's Mars Reconnaissance Orbiter — a satellite orbiting the red planet — spotted a relatively recent impact site on the Martian surface. The spacecraft detected a dark spot on the ground, and then the high-resolution camera (called the High-Resolution Imaging Experiment) snapped the detailed shot.
The impact, which is brand new in cosmic terms, likely formed between February 2006 and March 2014, noted the imaging team at the University of Arizona. For a size reference, the entire black and white image is under five kilometers, or some 3 miles, across. Blasted-out rays of material are clearly visible around the crater, which formed from a falling asteroid or meteorite.
Tweet may have been deletedSEE ALSO:If a scary asteroid will actually strike Earth, here's how you'll know
Compelling Mars photo shows Martian water flowed way more recently than we think
Scientists detect something really unexpected beneath Saturn's 'Death Star' moon
The mega-comet hurtling through our solar system is 85, yes 85, miles wide
Mars is absolutely covered in craters. NASA estimates there are over a quarter-million impact craters about the size of Arizona's famous Barringer Crater, which is some 4,000 feet across. And there are over 43,000 Martian craters larger than three miles wide.

Meanwhile, Earth has just around 120 known impact craters. That's because over hundreds of millions of years, different parts of Earth's surface have both been covered in lava or recycled as the giant plates that compose Earth's crust (tectonic plates) continually move rock below and back up to the surface. Mars isn't nearly geologically dead — marsquakes frequently occur there — but it's not nearly as active as Earth, a water-blanketed planet teeming with erupting volcanoes. On Mars today, there's little to wash away, or cover up, new craters.
One of Mars' most recent impact craters, then, might be visible for millions and millions of years.
TopicsNASA
This company is hiring someone just to drink all day2026-01-07 14:27
西班牙人前瞻 :大腿複出武磊繼續替補 中資德比上演2026-01-07 14:26
國腳因家庭原因離隊被網友吐槽 保全麵子還是事出有因 ?2026-01-07 14:23
泰山若沒進足協杯決賽後果無法想象 足協操作被批和稀泥2026-01-07 14:00
Aly Raisman catches Simone Biles napping on a plane like a champion2026-01-07 13:37
海港發戰申花次回合海報:奧斯卡為主角 望“再捷再厲”2026-01-07 13:36
澳大利亞公布戰國足名單:隊長萊基回歸 穆伊缺席2026-01-07 13:02
官方 :巴薩宣布哈維出任新帥 夢三傳奇回歸諾坎普2026-01-07 12:55
Despite IOC ban, Rio crowds get their political messages across2026-01-07 12:23
西班牙人前瞻 :大腿複出武磊繼續替補 中資德比上演2026-01-07 12:09
You can now play 'Solitaire' and 'Tic2026-01-07 14:27
魯媒:山東隊已反饋河南隊違規事宜 按規則應判02026-01-07 13:50
河南代理主帥:伊沃傷情仍在評估 戰鬥到最後一刻2026-01-07 13:32
津媒 :擊敗阿曼是國足唯一選項 全隊無需動員思想高度統一2026-01-07 13:18
Satisfy your Olympics withdrawals with Nike's latest app2026-01-07 13:14
海港發戰申花次回合海報 :奧斯卡為主角 望“再捷再厲”2026-01-07 13:13
博格巴正等待曼聯新合同 巴黎皇馬巴薩均有意免簽2026-01-07 12:18
模仿C羅 ?姆巴佩死球後膝撞對手 精彩表現因此蒙塵2026-01-07 12:16
MashReads Podcast: What makes a good summer read?2026-01-07 12:04
切爾西前瞻:衝擊5連勝+5連殺 齊耶赫50場裏程碑2026-01-07 11:59