Asteroid / Comet
Asteroids
Rocky relics of the early Solar System.
Hundreds of thousands of rocky bodies, most orbiting in the main belt between Mars and Jupiter. The largest, Ceres, is a dwarf planet.
Near-Earth Objects
Some asteroids cross Earth's orbit; NASA's NEO program tracks them to assess impact risk.
See also
Comets
Dirty snowballs from the outer Solar System.
Jupiter-family Comet
Comet class, nuclear feature, or particle population in the Solar System.
Nearly Isotropic Comet
Comet class, nuclear feature, or particle population in the Solar System.
Dynamically New Comet
Comet class, nuclear feature, or particle population in the Solar System.
Dynamically Old Comet
Comet class, nuclear feature, or particle population in the Solar System.
Oort Cloud Comet
Comet class, nuclear feature, or particle population in the Solar System.