The question of how gravity interacts with the quantum world has long perplexed physicists, but a non-quantum theory of space ...

A LONG TIME ago, in a galaxy far, far away—somewhere in the general direction of the constellation of Leo—two black holes ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." For over a century, scientists ...

Gravity, the force that attracts objects toward each other, is currently framed by Albert Einstein's theory of general ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...

Most scientific fields have been made over with a revolutionary theory at least once in recent centuries. Such makeovers, or paradigm shifts, reorder old knowledge into a new framework. Revolutionary ...

General relativity stands as one of the bedrock theories in modern physics. Its strange view of relative time and space has been confirmed by countless experimental and observational tests, from ...

For decades, astronomers have used distant supernovae as cosmic lighthouses to test fundamental physics and to measure the universe. For Joseph Farah, a fifth-year graduate student at UC Santa Barbara ...

Physicists have long struggled to unite quantum mechanics—the theory governing tiny particles—with Einstein’s theory of gravity, which explains the behavior of stars, planets, and the structure of the ...

The curious minds at What If examine overwriting Einstein’s theory of relativity with time travel, imagining paradoxes, causality, and cosmic consequences. Trump deletes video meme showing Barack, ...

A newly detected gravitational wave, GW250114, is giving scientists their clearest look yet at a black hole collision—and a powerful way to test Einstein’s theory of gravity. Its clarity allowed ...