The Air Force brought their secret unmanned X-37B spacecraft in for a landing this morning at the Kennedy Space Center in Florida. After completing 718 days in orbit the experimental X-37B landed safely at the historic Space Shuttle Landing Facility on Cape Canaveral. Many local residents reported hearing the sonic boom as the spacecraft arrived.
The Air Force tweeted shortly after 8 a.m. that the reusable X-37B Orbital Test Vehicle had landed safely, completing its fourth classified mission.
OTV-4 launched from Cape Canaveral on a United Launch Alliance Atlas V rocket on May 20, 2015.