Comets come and go, and some only appear once. Although comets spend their lives drifting through space, their show is a good one, and you will know when you see a comet gracefully dancing in space. It is a mixture of snow, ammonia, rock, ice, and methane.
Comets travel in something called an elliptical orbit.
An elliptical orbit is a oval shape, usually occurring around planets. Once in a while, comets are able to break through Earth's tough atmosphere. Usually, whenever a comet falls, it is like a large rock. People also often think that comets are balls of fire, but they are the opposite. When you see a comet looking like a ball of fire, you are really seeing a comet traveling toward the sun that is doomed to slow destruction by the sun's heat.