May 20, 2015

The X-37B shuttle blasting off atop an Atlas V 501 rocket starting its OTV-4 mission (Screenshot from ULA webcast)

The mini-shuttle X-37B blasted off atop an Atlas V 501 rocket from Cape Canaveral. The launch seems to have gone well but ULA (United Launch Alliance), which manages it, broadcat the images providing information on the progress of the operations just for a few minutes. That’s because the mission of this spaceplane is carried out by the US Air Force and is partially covered by military secret.