What we’re looking for is evidence of past life, either direct chemical or organic signs in the composition and the chemistry of rocks, or textural evidence in the rock record.
Bringing Mars rocks to Earth: With NASA's Perseverance Rover landing soon, a lead scientist explains its tech and goals : Read more
Bringing Mars rocks to Earth: With NASA's Perseverance Rover landing soon, a lead scientist explains its tech and goals : Read more
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