![]() ![]() ![]() The two most common in favor of colonization are survival of human civilization and the biosphere in the event of a planetary-scale disaster (natural or human-made), and the availability of additional resources in space that could enable expansion of human society. Many arguments have been made for and against space colonization. Space colonization (also called space settlement or extraterrestrial colonization) is the hypothetical permanent settlement and exploitation of natural resources at celestial objects other than Earth. As such it is a form of human presence in space, beyond human spaceflight and operating space outposts.
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