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 ...

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 ...

On December 30, astronomer Jonathan McDowell posted on X.com: “The abandoned Chandrayaan-3 propulsion module, left in a 125000 x 305000 km orbit in 2024, had a bit of a tussle with the Moon in ...