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Q&A Are moon colonies scientifically easier than interstellar travel?

Is it easier to build colonies within the solar system than to send colonies to other stars? Logically, wouldn't we have cities on Pluto sooner than we will have travelled to an exoplanet?

7 answers  ·  posted 8y ago by com.prehensible‭  ·  last activity 7y ago by com.prehensible‭

Question space travel planets space-travel colonization space-colonization