Chinese scientist ignites global UFO debate with paper hinting at antigravity propulsion and inertial mass cancellation.

For more than a century, gravity has been the immovable backdrop of modern physics, a force that can be described and exploited but never truly switched off. Now a former NASA engineer says he has ...

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 ...

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In the UK, Thales Alenia Space will be responsible for the design, manufacture, system assembly, integration, testing of the ...

Forbes contributors publish independent expert analyses and insights. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. Astronomers in the U.S. and Europe are actively working on a ...

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 ...