Scientists could soon test Einstein's theory of general relativity by measuring the distortion of time. General relativity states that gravity is the result of mass warping the fabric of space and ...

Their work introduces a new concept called q-desics, short for quantum-corrected paths through space–time. These paths generalize the familiar trajectories predicted by Einstein’s general theory of ...

Even if it turns out that time loops never take shape, studying them provides key insights into the deepest rules of reality.

For more than a century, physics has treated space and time as the smooth stage on which the universe unfolds, a flexible ...

Contemporary physics has learned to describe the universe with unprecedented precision. Yet when it tries to say what time is, it stumbles again and ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Two cutting-edge atomic clocks — the most accurate ever ...

Two blind spots torture physicists: the birth of the universe and the center of a black hole. The former may feel like a moment in time and the latter a point in space, but in both cases the normally ...

In the gloomy days of January, time seems to drag. According to the Einstein theory of relativity, it actually does—in a minute amount that means little to anyone except a scientist. During its annual ...

The big thinkers at Aperture explain relativity and how it warps the fabric of spacetime. Experts warn the internet will go down in a big way — and you'd better be ready ...

When black holes collide, the impact radiates into space like the sound of a bell in the form of gravitational waves. But ...