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8 images of Earth as seen from space

March 7, 2011, 12:25 p.m.
the moon setting in the distance over the curve of the earth

Photo: NASA

3 of 9

Moonset over Earth

This photo, taken from space shuttle Discovery, shows the moon setting from the Earth's limb. Sources report that the moon is the fifth-largest satellite in the solar system and the largest for its home planet. Because the moon is in a synchronized rotation with the Earth, we only see one side of its surface. It is up to space pictures like this to give us a more complete look at the moon.