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__ The Nature of Meteor/Comets __
==== Some meteors are about 225,000,000KM away from the sun. They usually are 100KM across. They normally orbit for roughly 1 year and 80 days. Most asteroids orbit around Mars and Jupiter. Only 12 are found in the Earths orbit. ==== ==== A long time ago, when the planets were being made thousands of comets crashed into the small planets making them bigger. Earth was made bigger that way too. Also a large source for our ocean could be comets because they are balls of ice. ====

Asteroids are the remains of planets. Big lumps of rock or metal that travel through space.
==== Meteor/Meteorites are tiny space rocks. They sometimes fly so close to Earth that they sucked in by gravity. Meteorites that enter the Earths atmosphere are called meteors. If they reach the ground they are called meteorites. They can do a lot of damage. Meteors are shooting stars. ====

==== Comets come from the Kuiper Belt and the Oort cloud. An astronomer named Jan Oort thinks comets are still in the Oort cloud. Gerard Kupier suggests that comets also come from the Kupier Belt. The Kupier Belt starts beyond Pluto and ends in the Oort cloud. ==== ==== Comets have to be pulled very hard to get them out of orbit and flying towards the sun. In the orbit of the Oort cloud they would get dislodged by a star’s gravity. In the Kupier Belt they would get dislodged by a planet because they are closer to the planets and the sun. ====