Boom Supersonic is putting its engine technology to work on the ground to power the AI boom, and help fund development of its ...

Modern jet engines operate in gas temperatures exceeding the melting point of their own components, surviving only through extreme materials science, hollow single-crystal blades, internal air cooling ...

Bob Maddox’s stage name, Crazy Rocketman, is a misnomer. Maddox doesn’t build rockets. He builds pulse-jet engines. There’s a difference. As for the crazy part—that may be true. Maddox is the world’s ...