Astrogeology Science Center

Saturn's rings viewed by Cassini
Saturn's rings viewed by Cassini

Our Solar System is made up of the Sun and the satellites that orbit the Sun. These satellites include the eight major bodies called planets and three other large bodies called dwarf planets and asteroids, comets, and other objects referred to as small bodies or minor bodies. Except for Mercury and Venus, all the planets have at least one moon (or satellite). Beyond Our Solar System are countless stars, solar systems, nebula, and other objects.