What is a space colony?
Space Colonization(space settlement, space humanization, space habitation) is autonomous (self-sufficient) human habitation outside of Earth. It is a long-term goal of national space programs.
At the time of the founding of the leper colony on Molokai, leprosy was epidemic in Hawaii. Molokai was the least heavily used island at the time, and there was space available for the leper colony. The founders believed that it was important to keep the lepers away from healthy people, and the remoteness of the colony allowed this separation.