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 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 ...

European researchers are developing miniaturized space propulsion technology that is propellant-free and based on electrodynamic tethers integrating perovskite-copper indium gallium diselenide (CIGS) ...

NASA engineers have successfully tested a new breed of reaction control engine and propulsion system. Aimed at furthering NASA’s space exploration goals, the tests helped investigate the possibility ...

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All DoD and other U.S. strategic satellites and technology platforms require propulsion subsystems operating in space to provide the impulse necessary to adjust velocity, change orbit altitude, and ...