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For questions related to planets, moons, stars and other celestial objects, and their motion on the sky.

3 votes

Could a disaster kill all (human) life on Earth but leave astronauts in low orbit alive long...

None. As Martin-Mueller speculated, there are, in fact, a ton of jobs that have to be done planet-side in order for any of our currently existing manned spacecraft to be able to return safely. With ev …
Matthew Najmon's user avatar