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What is special about Mars that makes it likely life formed there first instead of here? Just the 100 million year warm and wet headstart?
by Mistletoe 4y ago
What is special about Mars that makes it likely life formed there first instead of here? Just the 100 million year warm and wet headstart?
- adastra22 4y agoMars is smaller so it cooled faster after formation. Also with its thicker early atmosphere it probably was at just the right distance from the sun to be what we would consider an ideal temperature, even accounting for the dimmer sun at the time. Finally, Earth was shattered by the Moon-forming collision with Thea, which basically reset the cooldown clock for our planet. All these factors together mean that Mars had a heck of a head start.