Space Travel and Exploration

Why is the mesosphere so cold?

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Answered 2015-12-01 22:49:49

The mesosphere has thin air, and in thin air the molecules are spaced far apart. There are not enough molecules to collide with each other and other things like a thermometer to make it warm. Also, heat takes a long time to rise up to this level anyway. This accounts for it being so cold.

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