3 ms·
See how quickly life appeared once the earth had cooled down? https://en.wikipedia.org/wiki/Panspermia https://en.wikipedia.org/wiki/Panspermia I find this a
by e40 9y ago
See how quickly life appeared once the earth had cooled down?
https://en.wikipedia.org/wiki/Panspermia https://en.wikipedia.org/wiki/Panspermia
I find this a compelling possibility.
- Balgair 9y agoHighly unlikely. DNA's 'half-life' is about 500 years. Meaning that each nucleotide-bond has a 50% chance of breaking every 500 years.[0] At the time scales of interstellar travel, DNA based life is very unlikely to survive. EDIT: This then means that DNA based life was likely a local phenomenon. This also means that other planets may have done the same and that a 'interstellar seed' is not required. [0] https://www.the-scientist.com/?articles.view/articleNo/32799/title/Half-Life-of-DNA-Revealed/ https://www.the-scientist.com/?articles.view/articleNo/32799...