In Tom Clancy's book (and, later, the 1990 film) The Hunt For Red October, a Soviet submarine debuts a revolutionary, ultra-quiet engine that uses pumpjets and ...

Meet China's huge solar-powered drone, a 130-foot-wide machine designed to fly at more than 65,000 feet, for days on end. How? A super lightweight body and ...

SUPERAV While there are many amphibious armored vehicles in the world, most of them, whether tracked or wheeled, move very slowly in the water. China's new ...

China's developing a hypersonic weapon that has triple the range of existing Chinese air-to-air missiles. The premise: a ramjet engine that can turn already ...