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 ...

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 ...

Oh dear. When we brought you news on Thursday about the Falcon HTV-2; the fastest plane ever that was preparing to take flight, we didn't think it would end like this. Officials at the US Defence ...

The Defense Advanced Research Project Agency (DARPA) tried with little success on Thursday to fly its high-speed Hypersonic Technology Vehicle-2 (HTV-2), a mishap the agency chalked up to continued ...

This story was updated at 5:43 p.m. EDT. Editor's note: DARPA released an update late today confirming that the Falcon HTV-2 aircraft impacted the Pacific Ocean along its planned flight path. Read the ...

Aerodynamic design validated and new understanding of thermal material properties gained Following an extensive seven-month analysis of data collected from the Aug. 11, 2011, second flight of DARPA’s ...

At 7:45 a.m. PDT, an unmanned glider was launched from Vandenberg Air Force Base in California aboard a Minotaur 4 rocket. Overseen by DARPA, the Defense Advanced Research Projects Agency, the glider, ...

On Thursday, DARPA's unmanned Falcon Hypersonic Technology Vehicle-2 (HTV-2) was launched from Vandenberg Air Force Base in California aboard an Air Force Minotaur IV rocket, which inserted the ...

Aerodynamic design validated and new understanding of thermal material properties gained Following an extensive seven-month analysis of data collected from the Aug. 11, 2011, second flight of DARPA’s ...