GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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An asteroid
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A comet
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A meteoroid
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A meteor
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Detailed explanation-1: -Comets are cosmic snowballs of frozen gases, rock, and dust that orbit the Sun. When frozen, they are the size of a small town. When a comet’s orbit brings it close to the Sun, it heats up and spews dust and gases into a giant glowing head larger than most planets.
Detailed explanation-2: -But when a comet gets close to the Sun, it starts heating up. Eventually, the ice begins to turn to gas. This can also cause jets of gas to burst out of the comet, bringing dust with it. The gas and dust create a huge, fuzzy cloud around the nucleus called the coma.
Detailed explanation-3: -The significant comets are Halley’s Comet, Shoemaker Ley-9, Hyakutake, Hale Bopp, Comet Borrelly, Comet Encke, Tempel-Tuttel, Comet Wild 2, Comet Tempel, and Churyumov-Ge. The current number of known comets is 3570 (NASA).