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That's also IF the life is space faring. We haven't even found life anywhere that is at least remotely simple let alone one that has built spacecraft.
by polishdude20 3y ago
That's also IF the life is space faring. We haven't even found life anywhere that is at least remotely simple let alone one that has built spacecraft.
- dougmwne 3y agoBut to be fair, it’s not like we’ve been able to look very many places. We’ve checked a few of the planets in our own solar system and it could be plausible to detect a civilization within a few light years by radio wave if we were very lucky. https://physics.stackexchange.com/questions/245505/from-how-far-away-could-earths-telescopes-detect-earth-like-radio-signals https://physics.stackexchange.com/questions/245505/from-how-...