One Great Part of the Solar System- Comets

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Top 5 Facts

1.) The orbits of comets are constantly changing
2.) a comet is a small body in the solar system that orbits the Sun
3.) Comets sometimes have an atmosphere or a tail
4.) The comets nucleus is made up of rock, dust, and ice
5.) Some comets go near the Sun, where they are destroyed. Others are thrown out in the solar system forever.