For more than a century, gravity has been the stubborn outlier in physics, resisting every attempt to merge Einstein’s smooth ...

Warp drive has long been shorthand for “pure fantasy,” a narrative device that lets starships hop between stars without ...

General relativity and quantum mechanics seem to describe all of observable reality. Between them, general relativity and quantum mechanics seem to describe all of observable reality.

A group of physicists just built a tiny model of a wormhole on a quantum computer and sent a qubit — a quantum unit of information — through it. It’s a tiny step, but it could be the first step toward ...

Strangely, although we feel as if we sweep through time on the knife-edge between the fixed past and the open future, that edge—the present—appears nowhere in the existing laws of physics. In Albert ...

Black holes — those mysterious voids in spacetime — are among the most extreme tests of the physics that we know. They reveal what we don’t understand about the Universe, with paradoxes and ...

HERE is a readable book, excellently translated, for which we have again to thank Mr. H. L. Brose. Though it is called an introduction to the theory of relativity and gravitation, it is more strictly ...