this post was submitted on 29 Sep 2025
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[โ€“] gigachad@piefed.social 6 points 7 hours ago (2 children)

What I always wondered, how can you prevent "rediscovering" species you brought from earth? I think there is bacteria that can survive on the outside of space shuttles, right?

[โ€“] Skua@kbin.earth 4 points 5 hours ago (1 children)

This is actually a problem that space agencies approach already! Any time they're sending something to potentially life-harbouring locations. I believe that baking it is the standard solution

I'm only guessing here, but I would assume that sampling the output of geysers rather than actually accessing the underground sea also helps with this. It sounds a lot less difficult too, but I imagine that a reduced chance of contaminating the water is an extra benefit

[โ€“] gigachad@piefed.social 3 points 5 hours ago

I guess it is especially difficult, as they find basic amino acids or other "proto-organic" material in space.. But yeah, I am sure they address this and haven't just forgotten about it ;)

[โ€“] Wrufieotnak@feddit.org 2 points 6 hours ago* (last edited 6 hours ago)

Fair question, I would suspect that anything that is also on Earth doesn't count. Because the chances of it evolving exactly like Earth is 0.

Finding something that is related to a common ancestor on our planet would be interesting however, since it is proof that bacteria could survive being launched into space.

[โ€“] Skua@kbin.earth 4 points 9 hours ago

The idea of life existing in the underground oceans is so captivating. It's like their own tiny little pocket universe (other than the geysers)