Beyond Einstein: Gravitational Rainbows. Much as a gentle mist can split light waves into beautiful rainbows, dark energy may split gravitational waves into deeply revealing gravitational rainbows. Leading researcher Claudia …

This video is part of our Brilliant Breakthroughs series: our new 20-episode mini-series exploring the “Eureka!” moments and proud accomplishments of the greatest scientific minds of our time. Join us …

Not long ago, the idea of a computer beating a human at chess was the stuff of science fiction. But some of the most creative programmers of the 1980s and 90s were determined to make it a reality. And they did.

The neutrino is among the cagiest of particles, a subatomic wisp so ephemeral it could pass through light years of lead with more ease than a hot knife through butter.

The mechanism of collapsing stars falls short of explaining the existence of supermassive black holes—giants that weigh millions or even billions of times the mass of the Sun. Astrophysicist Priya …

Famed neurologist Oliver Sacks joined award-winning journalist John Hockenberry to discuss Sacks’ latest book, which explores the bewitching and surreal world of hallucinations.