How realistic is artificial gravity in space? This video explores the physics behind the idea, why it’s so difficult to ...

A new physics paper takes a step toward creating a long-sought "theory of everything" by uniting gravity with the quantum world. However, the new theory remains far from being proven observationally.

Physics Gravity may arise from quantumness of space Scientists have long sought the particle that carries the force of gravity, but a new theoretical model tosses out that idea entirely – and ...

Blue Origin's NS-29 New Shepard rocket will launch a moon gravity flight on Feb. 4 at 11:00 a.m. EST (1600 GMT) if all goes well. Here's what to know.