The unmanned, reusable space plane landed at the Air Force Base in Californoa on October 17th, 2014. The Orbital Test Vehicle mission 3 (OTV-3) spent 22 months in space on a secret mission....
Secret Missions of the X-37B
X-37B Orbital Test Vehicle-3 Lands at Vandenberg AFB
X-37 ALTV Test Flight (2010)
Launch of X-37B Mini Space Shuttle on OTV-3 Mission
HAARP's New Weapon. The X-37B Spacecraft