Hearty bacteria in a lab survived pressures comparable to an asteroid strike on the red planet, suggesting a hypothetical scenario in which our planet was seeded with life. No one really knows how life started on Earth, but one theory is that microbes hitched a ride on meteorites, and we’re the descendants of those tiny vagabonds. They may have even come from Mars. “We have Martian meteorites” that made it to Earth afte... [1501 chars]
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