NASA’s Perseverance rover has been collecting samples from Mars since 2021, but one of its most recently collected rocks could help it achieve its goal of finding evidence of ancient life on the planet. Nicknamed Cheyava Falls after the tallest waterfall in the Grand Canyon, the 3.2 feet by 2 feet sample contains “chemical signatures and structures” that could’ve been formed by ancient microbial life from billions of years ago.
Perseverance collected the rock on July 21 from what was once a Martian river valley carved by flowing water long ago. The sample, which you can see in
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