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> Life is very, very persistent, and niches will be filled. But I think it's safe to assume it's quite fragile at the very beginning, and therefore conditions
by Florin_Andrei 11y ago
> Life is very, very persistent, and niches will be filled.
But I think it's safe to assume it's quite fragile at the very beginning, and therefore conditions must be milder for it to appear at all.
Once it takes off it's probably much more sturdy.
- a3n 11y agoThere's strong speculation that there was an ocean on Mars, many years ago. Possibly mild enough to get started.
- hugh4 11y agoWe simply don't know how likely life is to arise given the right chemical conditions. We also don't know what those conditions are. It may still be that life is so unlikely that it only happens on one out if every billion planets where the right conditions exist.
- Florin_Andrei 11y ago> There's strong speculation that there was an ocean on Mars, many years ago. Yep. Here's a great book on the topic: http://www.amazon.com/Travelers-Guide-Mars-William-Hartmann/dp/0761126066/ http://www.amazon.com/Travelers-Guide-Mars-William-Hartmann/...