Residents near Cape Canaveral, Florida were awakened by a strange alarm clock on Sunday morning. The United States military’s secretive and experimental Orbital Test Vehicle, or X-37B space plane, broke through the sound barrier on its return to earth awakening many residents. It landed at NASA’s Kennedy Space Center at 7:47am EST.

Image

Source: Hot Hardware – Air Force’s Top Secret X-37B Space Plane Lands After Two-Year Mission In Orbit