Launch of the U.S. Air Force's secretive X-37B Orbital Test Vehicle on its third flight, OTV-3, atop a ULA Atlas-V rocket from Cape Canaveral SLC-41 on December 11, 2012. The Boeing-built resusable robotic spaceplane is a variant of NASA's X-37A, and - as of August 2014 - remains in orbit conducting space experimentation, risk reduction, and concept of operations development for long duration and reusable space vehicle technologies. 

Coverage for Zero-G News and the ARES Institute.

All photos copyright 2012, all rights reserved.

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