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

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

In the case of the TR-3B Black Manta, it means a craft that uses highly pressured mercury accelerated by nuclear energy, so that plasma is produced, which, in turn, creates a field of anti-gravity ...