This undated photo released by Vandenberg Air Force Base shows the X-37B Orbital Test Vehicle, or OTV. The U.S. Air Force's secrecy-shrouded X-37B unmanned spaceplane returned to Earth early Friday ... more 
This undated photo released by Vandenberg Air Force Base shows the X-37B Orbital Test Vehicle, or OTV. The U.S. Air Force's secrecy-shrouded X-37B unmanned spaceplane returned to Earth early Friday after more than seven months in orbit on a classified mission, officials said. less 
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Associated Press | Photo By Vandenberg Air Force Base
Sun, Dec 5, 2010 1:12 PM EST