Astrobiology is a multidisciplinary field that encompasses:
* Astronomy: Studying celestial objects and the conditions that might support life.
* Biology: Understanding the nature of life and the conditions necessary for its emergence.
* Chemistry: Investigating the chemical processes involved in the origin and evolution of life.
* Geology: Studying the geological history of Earth and other planets to understand the potential for past or present life.
Astrobiologists investigate questions like:
* Did life originate on Earth or did it arrive from elsewhere?
* What are the conditions necessary for life to arise and evolve?
* How do we detect life on other planets?
* What are the implications of finding life beyond Earth?
While the study of extraterrestrial life is often associated with the search for intelligent extraterrestrial life (SETI), astrobiology focuses on the broader question of the origins and evolution of life in the universe, regardless of its intelligence.