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Q&A Where to hide something massive in the galaxy?

This is somewhat vaguely related to a old question of mine involving a alien species who spend three thousand years developing a post singularity spaceship armada in the mantle of a lava planet (In...

6 answers  ·  posted 9y ago by InterstellarTK‭  ·  last activity 9y ago by InterstellarTK‭

Question space science-fiction