Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

Essentially, Perlut says squirrels visualize a color-coded mental map of their territory: one “color” for where they buried ...

Animals from completely different branches of the tree of life, such as insects, worms and vertebrates, independently evolved ...

DeepMind’s AlphaEvolve helps solve a math puzzle with Terence Tao, showing how AI can now invent new ideas—and prove old ones ...

So yes, we’re fans of the report — not for its prescriptions, but for its provocation. It has forced Harvard, for the first time in a long while, to think out loud about what it’s doing. And that, ...

SMCSGS-FS 69 became the first observational evidence of a star caught in a predicted but never-seen-before evolutionary phase ...