Could a Generation Ship Keep Humans Alive for 10_000 Years
Close your eyes and imagine a city sailing through the void for ten thousand years. A generation ship on a journey longer than all of recorded human history. It would need to be a complete, closed ecosystem where every atom of air, water, and food is recycled indefinitely [citation:3][citation:7]. The crew of at least 500 people would need genetic diversity to survive, but the real challenge is psychological—keeping a stable society alive for centuries without Earth's help [citation:3][citation:7][citation:10]. Some designs like Chrysalis stretch 58 kilometers, housing thousands on a 400-year…
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