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Q&A What would a semi-realistic thruster for a spaceship be, using fuel from stars or debris around a black hole?

I'm designing a world in which starships have renewable energy, refueled by parking around black holes or stars and recharging batteries with solar panels, but what fuel for an engine could be extr...

1 answer  ·  posted 7y ago by worldsmith‭  ·  last activity 7y ago by worldsmith‭

Question space technology