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Q&A If true interplanetary and interstellar travel were achieved, would the decreasing mass of the earth become a problem?

Assuming that in the not too distant future space travel developed enough, that large numbers of ships and people were leaving the earth's surface on a regular basis. Would this ever reach a point ...

3 answers  ·  posted 8y ago by Alex Kinman‭  ·  last activity 8y ago by Alex Kinman‭