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 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" ...

We have talked about the DARPA HTV-2 hypersonic glider that has been in testing before. The goal of the program is to be able to create a weapon that can strike anywhere on the planet within a few ...

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Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The Christian Science Church, and we’ve always been transparent about that. The Church publishes the Monitor ...

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 ...

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 ...

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 ...

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 ...