07/04/2012 06:17 AM CDT
The Air Force‘s
unmanned, reusable space plane landed in the early morning of June 16 at
Vandenberg Air Force Base, Calif., a successful conclusion to a
record-setting test-flight mission that began March 5, 2011, from Cape
Canaveral Air Force Station, Fla. The X-37B Orbital Test Vehicle, one of
two such vehicles, spent 469 days in orbit [...]
