Video Credit: United States Air Force (No Audio) NASA's original X-37 program began in 1999 and ran until September 2004 when NASA transferred the program to...
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
X-37B: Secret space plane