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MonsieurLeDrole t1_iwxtum7 wrote

How likely is it there were fossilized skeletons to be found? Does this mean then it's likely at at one time, both Earth and Mars had life? Any crossover with Venus?

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Bensemus t1_iwygovq wrote

Water is key for life as we know it so having a bunch of it is good for life. There is basically zero chance Mars had anything past single cell life. It took life on Earth billions of years to go from single cell to multicellular. Mars lost its atmosphere and oceans early on. There wasn’t enough time for life to evolve like it has on Earth.

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