Physicists searching for a better understanding of quantum gravity stumbled upon something unexpected: the defining ...

Physicists may have uncovered a surprising new clue that string theory—the idea that the universe is built from unimaginably tiny vibrating strings—could be more than just a mathematical fantasy.

Tenets of quantum mechanics and special relativity, among other theoretical ideas, lead inexorably to string theory.

If you could take an apple and break it into smaller and smaller parts, you would find molecules, then atoms, followed by ...

Could some observations from a faraway galaxy add up to a refutation of string theory? Researchers who study data from NASA’s Chandra Observatory think so. It’s difficult to prove something’s absence ...

The original version of this story appeared in Quanta Magazine. String theory captured the hearts and minds of many physicists decades ago because of a beautiful simplicity. Zoom in far enough on a ...

If you could take an apple and break it into smaller and smaller parts, you would find molecules, then atoms, followed by ...

Brian Greene is one of the foremost scientists and science communicators of our time. Greene, a theoretical physicist at Columbia University, has been working for decades to advance our understanding ...

String theory proposes that the fundamental constituents of the universe are one-dimensional “strings” rather than point-like particles. What we perceive as particles are actually vibrations in loops ...