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

A novel way to find aliens might be through gravitational wave detection, Loeb says. He is interested in laser interferometry ...

Scientists have discovered the exact point where gravity is weakest on Earth, leaving people feeling "lighter". After ...

Could a reactionless, gravity-defying propulsion system actually work? A former NASA engineer says yes, but scientists are ...

According to scientists, this ambipolar electric field is thought to be just as crucial to Earth as both gravity and magnetism.

Force is what helps our muscles get stronger ... The body has to adapt again when it is thrust back to earth. When you get back. Gravity starts pulling everything to your lower extremities ...