After 718 days in orbit, the X-37B Orbital Test Vehicle mission 4 (OTV-4) landed at NASA’s Kennedy Space Center Shuttle Landing Facility on 7 May 2017. The X-37B Orbital Test Vehicle, or OTV, is an experimental unmanned, reusable space plane to demonstrate technologies for a reliable space test platform for the U.S. Air Force.
Credit:
U.S. Air Force
Boeing X-37B Orbital Test Vehicle
Mission 4 landing
7 May 2017
