Planetary science (rarely planetology) is the scientific study of planets (including Earth), moons, and planetary systems, in particular those of the Solar System and the processes that form them. It studies objects ranging in size from micrometeoroids to gas giants, aiming to determine their composition, dynamics, formation, interrelations and history.
Planetary scientists work to improve our understanding of the planets, satellites and smaller bodies in the solar system through:
Planetary scientists work to improve our understanding of the planets, satellites and smaller bodies in the solar system through:
- Studying the atmospheres, surfaces and interiors of planets,
- Understanding the origins of planets and the physical processes at work, and
- Using radar to determine the physical characteristics of asteroids and to search for asteroids that may pose a hazard to Earth.
Research is carried out in the laboratory, from astronomical facilities throughout the world, and from spacecraft and landers, including the Mars rovers.