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The one shot for Mars may have been missed, millennia ago, when rocks blasted from Earth landed on Mars. On the geologic scale things get knocked around a lot.
by danielweber 13y ago
The one shot for Mars may have been missed, millennia ago, when rocks blasted from Earth landed on Mars.
On the geologic scale things get knocked around a lot.
- Crito 13y agoEven if we suppose that panspermia is likely, it is still important that we avoid cross-contamination ourselves. Discovering that panspermia took place through natural processes would tell us a lot about how prevalent and resilient life may be in the universe. Furthermore, two instances of life with the same abiogenesis point, isolated and diverged sometime in the past, would be very valuable for biologists.
- deleted 13y ago[deleted]
- ehsanu1 13y agoFurthermore, two instances of life with the same abiogenesis point, isolated and diverged sometime in the past, would be very valuable for biologists. Isn't this something you can basically get on Earth? Perspermia doesn't really seem to be required.
- Crito 13y agoTo a limited degree, yes. Biologists study divergence of isolated species all the time; panspermia would give us a difference in degree, not kind.