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"Smartindia is the best online tool for school students." Ms Deepa Chandran, Principal Anchal
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why does a comet have a tail? |
Comets only have tails when they are close to the sun. When they are far from the sun, comets are extremely dark, cold, icy objects. The icy body is called the nucleus. Nuclei are made of various types of ices, dirt and dust. As comets get closer to the sun in their journeys through the solar system, they start to warm up. |