PHOTOS: Happy Anniversary, Man on the Moon

Friday is 38 years since man's first steps on the moon.

Apollo 11 Anniversary: 'Giant Leap for Mankind'

Apollo 11
Apollo 11
Apollo 11
Apollo 11
Apollo 11
Apollo 11
Apollo 11
Apollo 11
Apollo 11
Apollo 11
Apollo 11
Apollo 11
Apollo 11
Apollo 11
It's been estimated that a sixth of the world's population watched as Apollo 11 landed and Buzz Aldrin and Neil Armstrong walked on the moon. Aldrin poses for a photograph taken by Armstrong beside the U.S. flag on the moon. (NASA )
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