The United States Air Force's X-37B Orbital Test Vehicle mission 4 landed at NASA - National Aeronautics and Space Administration's Kennedy Space Center Shuttle Landing Facility May 7, 2017. Managed by the Air Force Rapid Capabilities Office, the X-37B program is the newest and most advanced re-entry spacecraft that performs risk reduction, experimentation and concept of operations development for reusable space vehicle technologies. | Airman Magazine

The record-shattering mission of the U.S. Air Force's robotic X-37B space plane is finally over. After circling Earth for an unprecedented 718 days, the X-37B touched down Sunday (May 7) at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. Keep reading https://goo.gl/CgfEvL | Space.com