Space colonization. Space colonization (also called space settlement, or extraterrestrial colonization) is permanent human habitation that is not on Earth.
Many arguments have been made for space colonization. The two most common ones are survival of human civilization and the biosphere from possible disasters (natural or man-made), and the huge resources in space for expansion of human society. However right now the challenges, both technological and economic, involved in building a space colony are as great as the potential payoff. COOL Space-Science. TOP TEN UNSOLVED PROBLEMS IN PHYSICS. Venus - Sun Transit. Traveling throughout Space. Space travel.