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Q&A Rigorous Science Meta
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Q&A Let's plot a course between Earth and Gor

We know that Gor, or Counter-Earth, is not stable in a long-term sense. Let's handwave that away, or assume that we are dealing with a temporary span of time in which the instability is immaterial....

3 answers  ·  posted 6y ago by Columbia says Reinstate Monica‭  ·  last activity 6y ago by Columbia says Reinstate Monica‭

Question space travel planets orbital-mechanics space-travel earth counter-earth modern-age