Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. An abstract illustration of quantum particles entangling. New research aims to unite gravity with ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. An image of a black hole surrounded by matter. Does the secret of quantum gravity lie around ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

This episode of the Physics World Weekly podcast features Alex May, whose research explores the intersection of quantum ...

A new discovery suggests gravitational fields can enable matter to become quantum entangled — and that's even if the concept of quantum gravity does not exist. The idea comes from two London-based ...

A long-standing challenge in physics has been to integrate gravity into the Standard Model, which successfully describes the electromagnetic, weak, and strong forces. The difficulty lies in the ...

A physicist has proposed a bold experiment that could allow gravitational waves to be manipulated using laser light. By ...

In a bold step toward solving one of science’s most puzzling problems, researchers have proposed a new way to bring gravity into the same mathematical language as the other forces of nature. While the ...

For more than a century, gravity has been the stubborn outlier in physics, resisting every attempt to merge Einstein’s smooth space-time with the jittery world of quantum mechanics. A new wave of ...

Try as they might, scientists can’t truly rid a space or an object of its energy. But what “zero-point energy” really means ...