Context:
As a result, Astronomers have discovered that the Moon is slowly drifting away from us, at a
glacial 3.8 centimeters each year. Billions of years in the future, the Moon will appear smaller in the sky than it does today. Within a billion years or so, the Moon will be visually smaller than the Sun, and we won’t see total solar eclipses any more.
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http://www.universetoday.com/103206/what-is-the-distance-to-the-moon/