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By Natia • • • • • • • Asteroids are small, rocky objects that orbit the sun. Most asteroids are found in between mars and Jupiter. This is called an asteroid belt. Scientist think there are about 3,000 asteroids in an asteroid belt. Asteroids come in lots of sizes. The biggest asteroid, Ceres is about 600 miles across. Astronomers consider Ceres as a dwarf planet. • • • • • • • • • Ceres was the first asteroid discovered, it was discovered in 1801. from small pieces of rock. The pieces stuck to One of the smallest asteroids was discovered in 1991. Astronomers think asteroids are formed like planets. Both came together forming bigger objects. Many of the objects some together forming planets. Some of the object did not stick together. Those objects became asteroids. The pull of Jupiter’s gravity might have stopped the objects that are a part of an asteroid belt from sticking together to make an asteroid belt. Some asteroids may be the remains of comets. On the left is a medium-sized asteroid that orbits the Sun On the right is an Asteroid Belt starchild.gsfc.nasa.gov windows2universe.org