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Q&A Terraformed Venus and Mars

A Traveler from a very advanced civilization has visited the Solar system. He found the humans likable, and decided to leave them a boon. For some reason, he couldn't do anything directly to the Ea...

2 answers  ·  posted 6y ago by Alexander‭  ·  last activity 6y ago by Alexander‭

Question planets terraforming solar-system mars venus