A machine that can push itself through space without expelling any propellant has long been a holy grail for engineers and dreamers. Such an invention would transform space travel, but it has always ...

Discovering a machine that could somehow produce thrust without releasing propellant would be a game-changer for human space travel. There’s just one problem—such a device would defy the laws of ...

Element U.S. Space and Defense and Texas Tech University are working together to drive innovation in defense technology. A collaboration between Element U.S. Space and Defense and Texas Tech ...