This undated file image released by the U.S. Air Force shows the X-37B spacecraft. The X-37B Orbital Test vehicle was launched from atop a Atlas V Rocket at Cape Canaveral Air Force Station, Thursday, April 22, 2010 in Cape Canaveral, Fla. (AP Photo/U.S. Air Force, File)
December 3, 2010 5:45:19 AM PST
VANDENBERG AIR FORCE BASE, Calif. (AP) - December 3, 2010 --
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.