DARPA's August 11, 2011, second flight of the HTV-2 hypersonic glider - which ended prematurely after only 9min of a planned 30min flight across the Pacific - was captured on handheld video camera by a crewmember of one of the ships tracking the vehicle's telemetry as it re-entered the Earth's atmosphere at 20 times the speed of sound. DARPA does not yet know while the flight ended prematurely. The first HTV-2 flight, on April 22, 2010, also ended after just 9 min. by MyWebWorld