An Atlas V rocket in the 501 configuration launched the Air Force's mini space shuttle, The X-37B, On it's third mission called OTV-3. Launch occurred Decemb...
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
What Was The Military's Secret Shuttle Doing In Space?