X-37B Completes Second Classified Spaceflight

The U.S. Air Force’s second X-37B Orbital Test Vehicle (OTV-2) has landed after 469 days in space, more than double the time clocked by the OTV-1. As with the first OTV flight, the Air Force remains secretive about the mission, saying only that the Boeing-built X-37B conducted “on-orbit experiments.” In a short statement, it says the vehicle provides “return capability” that allows the Air Force to test new technologies without the same risk faced by other programs ...