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 ...

At this point, the EM Drive will be important -- if not for revolutionizing space travel, then at least for dramatically illustrating the difficulty of taking accurate force measurements at extremely ...

A controversial new electric propulsion system, which physicists say defies Newton’s Laws of Motion, was launched into space this weekend aboard a Space X rocket. Developed by electronics prototyping ...

Here’s what you’ll learn when you read this story: Discovering a machine that could somehow produce thrust without releasing propellant would be a game-changer for human space travel. There’s just one ...