CNN. Whatever it was doing up in space, we may never know, but the U.S. Air Force’s unmanned X-37B space plane returned to Earth this week, with still no details from the military on the nearly two-year mission.
”The X-37B Orbital Test Vehicle mission 3 (OTV-3),” as the military calls it, touched down at Vandenberg Air Force Base in California on Friday morning after conducting experiments in orbit for 674 days, the military said.
RT ( 8 May, 2017): ‘718 days in space’: Secretive US X-37B plane said to break record as it lands in Florida
”The unmanned, reusable space plane landed at NASA’s Kennedy Space Center in Florida after almost two years of circling our planet as part of a secret test mission.”
”It outlines the programme’s primary objectives as twofold. Firstly, it wants to test reusable spacecraft technologies for America’s future in space, and secondly, to carry out experiments which can be returned to, and examined, on Earth.”
https://www.rt.com/usa/387531-space-plane-x37b-landing/