02. How big, long, and wide is atmosphere? (A K2S Question)
From The Space Library
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Revision as of 18:09, 11 June 2014
The Earth's atmosphere covers the entire surface of the planet and extends upward with increasingly lower density. There are a few atoms of the Earth's atmosphere extending to the Moon's orbit.
Answer provided by Robert P. McCoy, Ph.D.
Question and Answer extracted from the book Kids to Space - by Lonnie Schorer
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