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My choices: Ganymede and Callisto (and maybe Titan) This is perhaps a bit of a buzzkill, but I honestly would not recommend colonizing much in the solar system besides the Moon and Mars. Here's wh...
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#1: Attribution notice removed
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System
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2020-06-01T14:13:38Z (over 4 years ago)
Source: https://worldbuilding.stackexchange.com/a/2524 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/