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Physicist Richard Feynman turned a lunch dilemma into a math problem. Researchers finally cracked his notes and found people approximate his solution on their own.

A new survey estimates 8 million young people use AI chatbots for help when stressed, angry or sad, an increase from 2024.

Tones, oddball sounds and words can spark brain cell responses, hinting at nuanced processing without consciousness.

Daraxonrasib, which nearly doubled patients' survival time, fights the disease in a new way. It bear-hugs a cancer protein that drives cell growth.

A mathematician found the most efficient way to fold paper into a doughnutlike shape.

The debate could reopen in 2030 when NASA's Europa Clipper spacecraft gets the closest view of the icy moon's surface.

How animals navigate by Earth's magnetic field is hotly debated. New research in pigeons points to iron-laden liver immune cells as the compass.

Lab experiments suggest mosquitoes can smell DEET and learn to associate it with food, but it's unclear whether that happens in the wild.

The new test may catch active tuberculosis in those with low access to health care or who have trouble making the phlegm needed for traditional tests.

The South Pacific blast may have consumed its own methane -- but using this idea against the greenhouse gas is controversial.