New Evidence for the Strange Geometry of Thought
The brain may represent concepts in the same way that it represents space and your location, by using the same neural circuitry for the brain’s “inner GPS.”
What Impossible Meant to Feynman
Physicist Paul Steinhardt remembers a great mentor and scientist.
How Math’s Most Famous Proof Nearly Broke
Andrew Wiles thought he had a solution to an age-old puzzle. Until it began to unravel.
Iron Is the New Cholesterol
Elevated iron is at the center of a web of disease stretching from cancer to diabetes.
Chaos Makes the Multiverse Unnecessary
Science predicts only the predictable, ignoring most of our chaotic universe.
Herbicide Is What’s for Dinner
How the biggest farming practice you’ve never heard of is changing your food.
Are Black Holes Actually Dark Energy Stars?
George Chapline, a physicist at the Lawrence Berkeley National Laboratory, doesn’t doesn’t believe black holes are real. In 2005, he told Nature that “it’s a near certainty that black holes don’t exist” and — building on previous work he’d done with physics Nobel laureate Robert Laughlin — introduced an alternative model that he dubbed “dark energy stars.”