Part one of term paper
have been witnessed ever since man has been speculating about objects in the nighttime sky and appear in records from the beginning of recorded civilization (Schweighauser 20). are made up of four distinct features. The first is the nucleus. The nucleus is made up of frozen gases, mostly water vapor with lesser amounts of carbon dioxide ...

Part two of term paper
... The coma may be up to 100,000 kilometers in diameter. The third feature of a comet is the head. The head is just the name given to the coma and nucleus. The last of the features of the comet are the tails. Most have two tails. One tail is made from dust particles and the other, called ion tail, is made gases. As a comet approaches the sun, the frozen gas becomes unfrozen which causes the dust particles to become free. Light pressure from the sun and some other forces cause these materi ...