DARPA has confirmed the splash down of its unmanned Falcon Hypersonic Technology Vehicle (HTV-2) following the hypersonic vehicle's second test flight on August 11. While a "controlled descent" ...

For the second time in a row, the Falcon HTV-2, the unmanned hypersonic glider developed by the Defense Advanced Research Projects Agency (DARPA) for the U.S. defense failed its test flight and got ...

(Update: 1:06 p.m. EDT)The U.S. military lost contact with an unmanned hypersonic glider shortly after it launched on a test flight today (Aug. 12) as part of a global strike weapons program to ...

DARPA has launched an unmanned hypersonic gliding vehicle that can reach speeds up to Mach 20 (13,000mph). The Falcon program aims to develop and demonstrate hypersonic technologies for prompt use in ...

WASHINGTON — For the second straight time, controllers lost contact with an experimental U.S. military hypersonic vehicle before it could complete its planned flight profile. The second Hypersonic ...

A cargo ship from Japan pulled alongside the International Space Station on Wednesday, maneuvering close enough for the lab’s robotic arm to reach out and grab it as the vehicles soared 260 miles over ...