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.

The first - and perhaps only - video footage of the ill-fated second test-flight of DARPA's Falcon Hypersonic Technology Vehicle 2 (HTV-2) has been released.

Last summer DARPA conducted a test of its unmanned hypersonic glider dubbed Hypersonic Technology Vehicle-2 or HTV-2. The vehicle was able to maintain stable flight… ...

Update: DARPA has gone silent regarding HTV-2, but its safe to assume at this point that contact with the hypersonic Falcon vehicle was lost before it fulfilled all of its mission objectives. No ...

A technology demonstration and data-gathering platform, the HTV-2’s second test flight was conducted to validate current models and increase technical understanding of the hypersonic regime.

HTV-2 was traveling at Mach 20–that’s 20 times the speed of sound–when an as-yet unexplained flight anomaly caused the vehicle’s automated systems to kick in and put the thing into a ...