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Psychedelic drugs can trigger characteristic hallucinations, which have long been thought to hold clues about the brain’s circuitry. After nearly a century of study, a possible explanation is crystallizing.

A century ago, the great mathematician David Hilbert posed a probing question in pure mathematics. A recent advance in optimization theory is bringing Hilbert’s work into a world of self-driving cars.

Simple math can help scheming politicians manipulate district maps and cruise to victory. But it can also help identify and fix the problem.

The color of LED lights is controlled by a clumsy process. A new mathematical discovery may make it easier for us to get the hues we want.

The mathematician Svitlana Mayboroda and collaborators have figured out how to predict the behavior of electrons — a mathematical discovery that could have immediate practical effects.

Powerful new quantitative tools are now available to combat partisan bias in the drawing of voting districts.

The author shows how new mathematical techniques can be used to revitalize a 650-year-old work of art.

Machine learning works spectacularly well, but mathematicians aren’t quite sure why.

A conversation with the mathematical physicist Freeman Dyson on quantum electrodynamics, climate change and his latest pet project.

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