03. How big is the Moon? (A K2S Question)

From The Space Library

The radius of the Moon is measured from its center of mass to its surface. For the Moon this is, on average, about 1,080 miles. The Earth's radius at the equator is 3,963 miles making the Moon's radius 27.25 percent that of the Earth. http://www.nasa.gov/worldbook/moon_worldbook.html (See CDROM)

Answer provided by Thomas Matula, Ph.D. & Kenneth J. Murphy

Question and Answer extracted from the book Kids to Space - by Lonnie Schorer

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