08 May 2017

Secret US spaceplane returns to Earth after record flight

The US Air Force's not-so-secret secret spaceplane, the X-37B, set a new orbital endurance record for a reusable unmanned spacecraft as it set down today at the Kennedy Space Center in Florida. Orbital Test Vehicle mission 4 (OTV-4) came to an end at about 8:00 AM EDT as the aircraft made an autonomous touchdown on the runway of the Shuttle Landing Facility after spending 718 days in orbit.

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