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Q&A Rapid-repeat re-entry vehicles

In my current writing project, I'm working in a universe where mysterious alien beings travel not directly through space, but through planetary atmospheres via wormholes. These aliens shotgunned th...

4 answers  ·  posted 5y ago by BMF For Monica‭  ·  last activity 5y ago by BMF For Monica‭

Question space spaceships ships re-entry