This is NASA’s best shot at finding life on Mars

From Verge Science.

NASA’s Mars rover, Perseverance, is on its way to the Red Planet with the goal of seeking out evidence of life there. How will we know that evidence if we see it? And how can we be sure we’re not “discovering” Earth microbes that hitched a ride with the rover? Here’s what NASA’s scientists, engineers, and their “planetary protection lead” have to say.

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