Thraxel04/02/09
There are hundreds of thousands of known asteroids in the belt. However, the asteroids are spaced widely so the belt is somewhat empty.
bonnieginter04/02/09
The total mass of the asteroid belt is equal to 4% of the mass of Earth's moon.
aseforlife04/02/09
The belt consists of three types of asteroids, C-type, S-type, and M-type.