Comet

Comets, or "shooting stars" are relatively small, icy celestial bodies that revolve around the sun. In the comets approach to the sun, some of the ice in the comet turns into gas, thus creating a long luminous tail that streams behind the comet. Over the past 2,500 years, approximately 2,000 comets have been observed and recorded. Several hundred comets were not visible to the naked eye, and were discovered during the past few decades with the aid …

…to become less bright. The star is classified as a red giant or super giant depending on the mass of the star. It will eventually collapse and explode. The information and facts in this site are good, but not as detailed as the previous sites used. I found all three sites to be helpful in their own ways, all containing data and pictures that aid in discovering more about the composition of the solar system.