Summary | The program began as a NASA project in 1999 but was
later transferred to the Pentagon.The first three missions all
ended with landings at Vandenberg Air Force Base in
California.The X-37B, built by Boeing, looks much like NASA's
retired space shuttles, only much smaller.It is boosted into
orbit by a rocket and lands like an aircraft on a conventional ...
later transferred to the Pentagon.The first three missions all
ended with landings at Vandenberg Air Force Base in
California.The X-37B, built by Boeing, looks much like NASA's
retired space shuttles, only much smaller.It is boosted into
orbit by a rocket and lands like an aircraft on a conventional ...
en.ce.cn | 08 May 2017