What are the icy objects with long 'tails' that orbit the Sun?
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Comets
Comets are often described as 'dirty snowballs' made of ice, dust, and frozen gases. When they get close to the Sun, the heat causes the ice to vaporize, creating a glowing 'coma' and a tail that always points away from the Sun.
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- What name is given to the icy solar system bodies that develop long tails as they orbit the Sun?