For more than a century, gravity has been the immovable backdrop of modern physics, a force that can be described and ...

This new propulsion system could rewrite the rules of spaceflight—not to mention completely defy conventional physics.

An engineer who once worked with NASA says he has built a machine that can push against gravity without burning a drop of ...

One of the 1990s' brightest tech stars may be headed to prison amid a shocking fall from grace that includes everything from alleged anti-gravity tech to elder abuse allegations to claims of a massive ...