What is astrobiology?

A branch of astronomy that deals with the identification of habitable regions in the universe, the search for extraterrestrial life and effects of outer space environments on living organisms. It is the study of the origin and distribution of life in the universe. Astrobiology makes use of physics, chemistry, astronomy, biology, molecular biology, ecology, planetary science, geography and geology to investigate the possibility of life in other worlds.

Branch of astronomy, Identification of habitable regions, Universe, Extraterrestrial life, Effects of outer space environments on living organisms, Origin and distribution of life, Astrobiology, Physics, Chemistry, Astronomy, Biology, Molecular biology, Ecology, Planetary science, Geography, Geology, Life in other worlds