Asteroid / Comet
Meteoroid
A small chunk of cometary or asteroidal debris in space.
Solid particles ranging from grains to small boulders moving through interplanetary space.
Overview
Solid particles ranging from grains to small boulders moving through interplanetary space.
See also
Centaur Object
An icy small body roaming the outer planets.
Asteroids
Rocky relics of the early Solar System.
Comets
Dirty snowballs from the outer Solar System.
Meteoroids, Meteors & Meteorites
Three names for one falling rock.
Near-Earth Asteroid
An asteroid whose orbit ventures near Earth.
Trojan Asteroid
An asteroid sharing a planet's orbit at L4 or L5.