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The Hubble Space Telescope

By: Samantha Johnson on Oct. 16, 2009, 11:21 p.m.
Terra, Luna

Photo: NASA

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Terra, Luna

This image was taken in 1999 by the crew on a Hubble service mission. On this particular day, Dec. 22, the moon is incredibly bright and visible. That is because it became full at the same time it was closest to the Earth, on a day that the Earth was especially close to the sun.