Comet (Comet) is a kind of objects in the solar system revolved around the sun. A sublimation gas when close to the sun. Cause I dust and gas surrounded by hazy And fry stretches outside so that the tail. Which is a phenomenon of solar radiation on the nucleus of a comet. Heart of the comet's nucleus or "dirty snowball" consists of ice, carbon dioxide, methane, ammonia, and dust with solid rock mixed together. Diameter ranging from a few kilometers to several ten kilometers.
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