An unmanned American experimental aircraft failed in a hypersonic test flight and dropped into the Pacific Ocean, the US Air Force said Wednesday.
London to New York in one hour? US military is ready to test a radical new hypersonic aircraft that can cover a distance of 4,500 mph within seconds.
Day in Pics: 22nd December
Showbiz World - December 22, 2014
Sunny Leone with Mastizaade