Scientists want to learn how comets are formed. They think that such information will help explain the origin of the solar system. In history comets have a special place. People believed that they brought news of death, destruction, or military victories. The tails of comets provide viewers with spectacular sight at night.
Comet tails are millions of kilometers long.
Their tails frequently reach lengths of 250 million kilometers long. The tails frequently reach lengths of 2 million kilometers and more. B.C. The Chinese kept careful records and so did the Babylonian . Aristotle was interested in comets. He thought that they began as burning gases in the earth's atmosphere.