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Q&A Building a planet with a primordial black hole core

I have been trying to figure out a way of explaining how an advanced society some time in the past built an artificial planet with a black hole at its core and the effects that would have on the pe...

1 answer  ·  posted 6y ago by Althaen‭  ·  last activity 5y ago by Althaen‭

Question physics black-holes megastructures gas astrophysics