Space habitats are artificial environments that are designed to support human life and activity in outer space. These habitats could be located on space stations, on the surface of other celestial bodies such as the moon or Mars, or could even involve the construction of massive structures in space itself, such as O'Neill cylinders or Stanford tori. The purpose of space habitats is to provide a safe and habitable environment for humans to live and work in space for extended periods of time, either for scientific research, commercial purposes, or eventual colonization of other planets. Research in this area focuses on developing the technology and infrastructure needed to create and maintain sustainable space habitats, as well as studying the psychological and physiological effects of long-term space habitation on humans.