A secretive space plane returned to Earth on Sunday with a sonic boom.
The U.S. Air Force's unmanned, reusable vehicle landed at NASA's Kennedy Space Center after spending a record 718 days in space. Powerful shock waves rippled throughout Central Florida as the mini-space shuttle returned from its mission.
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The X-37B Orbital Test Vehicle (OTV) is the military's newest and most advanced re-entry spacecraft. It's part of a broader U.S. strategy to develop out-of-this-world technologies that can be used for multiple launches and landings. Read more... More about X 37b , Cape Canaveral , Kennedy Space Center , Nasa , and Military