An arrowhead-shaped rock on Mars sporting features that may hint at ancient microbial activity on the Red Planet has left ...
The intriguing chemistry of a rock collected by the Perseverance rover could trace to microbial activity—or not ...
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'Leopard-spotted' rock may be a sign of ancient life on MarsNASA's Perseverance rover discovered a rock that may hold the proof that microbial life once existed on Mars. Over the years, NASA rovers have investigated countless rocks on Mars. In doing so ...
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