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Q&A Interstellar comet hopping

I read a blog post explaining why interstellar travel is terribly impractical. The short answer is that stars are far away and travelling that far takes a very long time and ridiculous amounts of e...

8 answers  ·  posted 9y ago by Ville Niemi‭  ·  last activity 6y ago by Ville Niemi‭

Question space reality-check