Two NASA spacecraft at Mars – one on the surface and the other in orbit – have recorded the biggest meteor strikes and impact craters yet.
The high-speed barrages last year sent seismic waves rippling thousands of miles across Mars, the first ever detected near the surface of another planet, and carved out craters nearly 500 feet across, scientists reported Thursday in the journal Science.Sign up to receive daily headline news from the Calgary SUN, a division of Postmedia Network Inc.By clicking on the sign up button you consent to receive the above newsletter from Postmedia Network Inc.
Mars’ atmosphere is thin unlike on Earth, where the thick atmosphere prevents most space rocks from reaching the ground, instead breaking and incinerating them.tap here to see other videos from our teamA separate study last month linked a recent series of smaller Martian meteoroid impacts with smaller craters closer to InSight, using data from the same lander and orbiter.
The larger of the two struck last December some 2,200 miles from InSight, creating a crater roughly 70 feet deep. The orbiter’s cameras showed debris hurled up to 25 miles from the impact, as well as white patches of ice around the crater, the most frozen water observed at such low latitudes, Posiolova said.
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