An engineer who once worked with NASA says he has built a machine that can push against gravity without burning a drop of fuel, a claim that, if true, would upend how rockets, satellites, and even ...

Hyundai Motor has patented an air mobility device that utilizes the Coanda effect to improve propulsion, increase flying range, and reduce noise. The device includes compression motors, rotatable ...

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 ...