Space biology refers to the study of living organisms and their interaction with the environment in outer space. Synonyms for space biology include astrobiology, exobiology, extraterrestrial biology, space life sciences, and astroecology. Astrobiology focuses on the search for life beyond our planet, while exobiology examines the origin and evolution of life in the universe. Extraterrestrial biology encompasses the study of life in space and its potential impact on Earth and other planets. Space life sciences include the study of human health in space and the development of life support systems for long-duration spaceflight missions. Astroecology focuses on the ecological relationships and interactions between organisms in space.