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Q&A Largest possible man-made planet-like body

Humanity is an advanced civilization, and has long, long since took to the stars. Their resources are seeming boundless, and their technology is fantastic. For some reason beyond our 21st century u...

2 answers  ·  posted 8y ago by Ranger‭  ·  last activity 7y ago by Ranger‭

Question space planets space-constructs science-fiction