The U.S. military's mysterious X-37B space plane is headed back into the great beyond to do… whatever it does up there.
The X-37B is slated for its third launch in October, the Air Force said, but like its two orbital predecessors, the mission of the unmanned spacecraft remains shrouded in secrecy. The exact timing of the October spaceflight, dubbed Orbital Test Vechicle-3 or OTV-3, is also tentative.
"We are on track for the launch of the X-37B to occur next month, but the exact date of the launch is dependent on a number of factors including range conditions and weather," Air Force spokespersonLt. Col . John Dorrian told ABC News. The 29-foot-long vehicle is set to launch aboard an Atlas 5 rocket from the Florida station of Cape Canaveral.