X-37 Space Vehicle Completes Secretive 469-Day Mission

The U.S. Air Force's unmanned, reusable space plane has landed after more than a year in space, reports the Air Force News Service.

Space.com described the 15-month operation as a "mysterious" mission whose objectives are still "shrouded in secrecy."

The X-37B orbital test vehicle landed on Friday at Vandenberg Air Force Base, Calif., after spending 469 days in orbit conducting experiments, with a focus on the vehicle itself, said a service release.

The Air Force has built...