The Rolls-Royce Griffith VTOL airliner was one of the most extreme passenger aircraft ideas ever proposed, combining 56 lift ...

RIO DE JANEIRO, Brazil — Commercial jet engine makers faced renewed pressure from airline CEOs on Monday, as carriers warned ...

The answer lies in a fascinating dance of air, fire, and spinning blades.

Since the 1960s engineers around the world have been fiddling with a novel type of jet called a rotating detonation engine (RDE), but it has never got beyond the experimental stage. That could be ...

There’s a building in Roswell that looks like any other brick warehouse, except for two things: It features a couple of metal cooling towers that don’t match the rest of the building, and there’s an ...