时间:2025-07-19 06:15:55 来源:网络整理编辑:娛樂
Mars is alive. (Geologically.)NASA recently reported that its InSight lander — sent to observe
Mars is alive. (Geologically.)
NASA recently reported that its InSight lander — sent to observe geologic activity beneath the Martian surface — recorded one of its biggest quakes yet on Sept. 18. The 4.2 temblor, a quake that would have been big enough for people to feel had it happened on Earth, lasted an hour-and-a-half.
NASA said the event was "one of the biggest, longest-lasting marsquakes the mission has ever detected."
The agency also noted that the 4.2 quake was the third "major" quake InSight has observed in the last month. Both a 4.2 and 4.1 magnitude quake hit on Aug. 25.
Tweet may have been deleted
InSight landed on Mars in Nov. 2018, so planetary scientists are still observing how geologically active Mars truly is. The solar-powered lander has observed hundreds of quakes, suggesting there might be volcanically active places in the Martian underground, perhaps hot molten rock (magma) moving and flowing like it does on Earth.
Though NASA researchers are still studying the recent September quake, they've found the August marsquakes occurred far off, much farther than where the other quakes originated in the plains of Cerberus Fossae.
"One especially intriguing possibility is Valles Marineris, the epically long canyon system that scars the Martian equator," wrote NASA. That's some 6,000 miles from InSight.
SEE ALSO:If a scary asteroid will actually strike Earth, here's how you'll knowNASA engineers used a clever strategy to keep the seismometer on and recording quakes in recent months. Mars' orbit has taken it farther from the sun, and dust had covered InSight's solar panels. This meant there was insufficient sunlight to power the entire machine. So NASA directed InSight's robotic arm to "trickle" sand near a solar panel, thinking wind would sweep sand granules over the panel and remove dust.
The plan worked. And InSight recorded some major Martian quakes.
Cat gets stuck in the most awkward position ever2025-07-19 05:36
曝足協不想給李鐵全部薪水 沒人承認是自己聘請李鐵2025-07-19 05:01
亞洲女足諸強忙熱身備戰亞洲杯 中國女足尚未組隊2025-07-19 04:51
官方 :熱刺VS伯恩利因大雪被取消 比賽將延期進行2025-07-19 04:46
Dog elected for third term as mayor of Minnesota town2025-07-19 04:35
國足是否換李鐵下月見分曉 陳戌源暫未與傳聞新主帥見麵2025-07-19 04:31
球賽宣揚女權記者卻遭襲臀 意大利美女遭遇極尷尬2025-07-19 04:28
西班牙人前瞻 :武磊期待重回首發 盼破326天進球荒2025-07-19 04:26
Mall builds real2025-07-19 04:11
法媒:內馬爾預計因傷休戰六周 2021年提前報銷2025-07-19 04:02
This company is hiring someone just to drink all day2025-07-19 05:54
圖赫爾:我們無法保障結果 但切爾西這麽踢就該贏2025-07-19 05:25
亞洲女足諸強忙熱身備戰亞洲杯 中國女足尚未組隊2025-07-19 04:55
腦回路崩了 !南美冠軍球員加盟演員請就位 凶手竟是主裁判 ?2025-07-19 04:52
Nate Parker is finally thinking about the woman who accused him of rape2025-07-19 04:46
拉莫斯 :我支持梅西贏得金球獎 他是獨一無二的2025-07-19 04:44
切爾西VS曼聯前瞻:盧卡庫欲弑舊主 C羅破咒衝紀錄2025-07-19 04:20
中甲又現離奇丟球!門將出擊踢空 竟成烏龍助攻(gif)2025-07-19 03:51
This coloring book is here for all your relationship goals2025-07-19 03:45
曝李鐵用國腳資格幫經紀公司置換利益 執教國足仍幹預武漢隊工作2025-07-19 03:42