Secretive Air Force Space Plane X37B Lands | Video

After a mission of unknown purpose, unmanned X-37B spacecraft, also known as Orbital Test Vehicle-2 (OTV-2), glided back on auto-pilot, touching down at California's Vandenberg Air Force Base at 5:48 a.m. PDT on 16 June 2012. [Infrared and visible.]
credit : 30th Space Wing - Vandenberg AFB