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Q&A How long would it take to build a colonization ship?

I am creating a history for my galactic civilization, and was thinking that the first colonization ship might be launched around the year 2200. World War Three Just a few years from now, a third ...

3 answers  ·  posted 6y ago by ScienceKeanu‭  ·  last activity 6y ago by ScienceKeanu‭

Question space travel reality-check spaceships space-travel colonization space-colonization ships