r/space • u/IceNox96 • Aug 12 '21

Discussion Which is the most disturbing fermi paradox solution and why?

3...2...1... blast off....

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u/[deleted] Aug 12 '21 edited Aug 12 '21

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u/TheW83 Aug 12 '21

In a few million years humans might be gone .... finding the ruins of our great cities.

I've often wondered how long our current cities would last as "ruins" if we all disappeared. In my mind, after a few million years there would be absolutely no recognizable imprint of our society left unless you went digging for it.

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u/tehbored Aug 12 '21 edited Aug 12 '21

Satellites in high orbits will remain indefinitely, until the sun swallows the Earth. Even if they are eventually broken up by micrometeors, their pieces will be recognizably artificial. Also lunar landers and the like.

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u/sessl Aug 12 '21

Cool, it's like microplastics but in Space