A former NASA engineer claims a new engine can beat gravity without fuel. Is it a breakthrough or just a classic physics trap?

For as long as rockets have existed, motion in space has come with a brutal tradeoff. To move forward, you throw mass backward, and that means carrying huge amounts of fuel. Charles Buhler says that ...

"Hearst Magazines and AOL may earn commission or revenue on some items through these links." In 2001, British Electrical Engineer Roger Shawyer first introduced the "impossible drive," known as the ...

Inside Exodus and its propellantless dream Buhler’s company, Exodus Propulsion Technologies, is based in Merritt Island, Florida, and it exists for a single purpose: to turn this controversial drive ...