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Bizarre quantum bonds connect distinct moments in time, suggesting that quantum links — not space-time — constitute the fundamental structure of the universe.

Two leading candidates for a “theory of everything,” long thought to be incompatible, may be two sides of the same coin.

Computer scientists are abuzz over a fast new algorithm for solving one of the central problems in the field.

A new breakthrough that bridges number theory and geometry is just the latest triumph for a close-knit group of mathematicians.

Nature offers species a panoply of ways to determine an organism’s sex. That flexibility suggests we need not be concerned about losing sex chromosomes, but it raises the question of why such a fundamental property is so variable.

Scientists are homing in on a warning signal that arises in complex systems like ecological food webs, the brain and the Earth’s climate. Could it help prevent future catastrophes?

Scientists have begun to identify the symphony of biological triggers that powered the extraordinary expansion of the human brain.

A newly discovered class of microbe could help to resolve one of the biggest and most controversial mysteries in evolution — how simple microbes transformed into the complex cells that produced animals, plants and fungi.

A theorem for coloring a large class of “perfect” mathematical networks could ease the way for a long-sought general coloring proof.