Asteroids and Comets
its the comets are smaller than planets, moons, and asteroids. In order of size, usually comets < asteroids < moons < planets
Comets
Stars, planets, moons, comets, asteroids and other phenomena.
No. Neither do any of their moons, and neither do any comets or asteroids.
All of our 8 planets & their moons, asteroids, meteors, comets etc.
The Sun, planets, moons, planetoids, asteroids, dust, gas, comets.
There are asteroids, meteoroids and comets.
Because the sun is not a planet. In simple terms, moons are to planets as asteroids, comets, and planets are to the sun.
Basically absence... also comets, meteors, asteroids, planets, moons, satellites, shuttles and space stations, planets and moons.
Planets, asteroids, meteors, comets, moons (which are also in orbit around their respective planets), dust particles, interplanetary gas.
the asteroid belt, the kuiper belt, and the oort cloud.
Planets, moons, and asteroids, comets and gases, dust, particles etc.