...Defense Advanced Research Projects Agency said Friday.The Hypersonic Technology Vehicle-2, launched from Vandenberg Air Force Base, Calif., atop a rocket and released on Aug. 11, 2011, was part of research aimed at developing super-fast...

...officials said. Until the system is operational, all tests will be conducted with a target warhead launched from Vandenberg Air Force Base in California and an interceptor launched from Kwajalein Atoll in the central Pacific. This is ''for safety...

...intercontinental-range missile equipped with a mock warhead, roared off a launch pad 4,800 miles away at Vandenberg Air Force Base, Calif. Navigating by the stars and information transmitted from a ground station on Kwajalein, the interceptor's...

VANDENBERG AIR FORCE BASE, Calif. (AP) -- Investigators are trying to determine why a privately owned rocket carrying satellites and the cremated remains...

...rocket stage is expected to splash down. Greenpeace planned to station a vessel about 110 miles offshore from Vandenberg Air Force Base, said Steve Shallhorn, the group's campaign director.

...40 a.m. EDT Saturday, about 21 minutes after the target missile was launched 4,300 miles to the east at Vandenberg Air Force Base, Calif. But the warhead-busting ''kill vehicle'' never separated from the booster rocket, so it never...