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The Solar System

Last Updated: Monday June 07 2004 16:37 GMT

Asteroid belt

Toutatis asteroid

The asteroid belt is a stretch of rocks in between Mars and Jupiter.

Asteroids can be up to 933 km wide, and all of them put together are less heavy than our own moon.

They are between 300 and 600 million miles from the Sun.

They are made of rock, iron and nickel.

Guide to The Solar System