National Journal

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PHOTO OF THE DAY: Space Shuttle Atlantis lands on July 21, 2011 at Kennedy Space Center in Florida, ending its 13-day mission. Atlantis safely touched down, bringing an end to the 30-year Space Shuttle program. (PHOTO: STAN HONDA/AFP/GETTY IMAGES)

PHOTO OF THE DAY: Space Shuttle Atlantis lands on July 21, 2011 at Kennedy Space Center in Florida, ending its 13-day mission. Atlantis safely touched down, bringing an end to the 30-year Space Shuttle program. (PHOTO: STAN HONDA/AFP/GETTY IMAGES)