How Long Could a Starship Survive Between Galaxies_
A starship's survival between galaxies depends on its design and purpose. As a physical structure, it could last billions of years. As a functional vessel carrying a living crew, survival is measured in centuries. For a voyage to a nearby star, current theoretical designs aim for 250 to 400 years. For longer missions, a generation ship is the only option—a self-sustaining ecosystem supporting a human society for generations. The Chrysalis concept would be 58 kilometers long, carry 2,400 people, and travel for 400 years. The greatest challenge is not technical, but human: maintaining a stable…
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