Astrobiology is the study of the potential for life beyond Earth, including the origins of life, evolution, and potential habitats for life on other planets and moons. It combines principles from various scientific disciplines such as biology, chemistry, astronomy, and geology to understand the conditions and processes that could give rise to life in other parts of the universe. Astrobiologists investigate the possibility of microbial life on Mars, Europa, and other celestial bodies, as well as the potential for intelligent life elsewhere in the cosmos. This field of research helps broaden our understanding of life as we know it and explores the vast possibilities of life in the universe.