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

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If you could take an apple and break it into smaller and smaller parts, you would find molecules, then atoms, followed by subatomic particles like protons and the quarks and gluons that make them up.

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 ...

Explore the fascinating concepts of string theory, a fundamental framework in modern physics that describes how the universe ...

A new theoretical study suggests that the mysterious force driving the accelerated expansion of the universe—known as dark energy—may actually be rooted in a deeply quantum structure of space-time.

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

(via Sabine Hossenfelder) String theory was a beautiful idea, the best contender for a theory of everything that we have seen so far. Thousands of physicists spend decades trying to work it out. But ...

A hundred years ago, quantum mechanics was a radical theory that baffled even the brightest minds. Today, it's the backbone of technologies that shape our lives, from lasers and microchips to quantum ...