Finding alien Earths requires seeing Earth-sized planets at Earth-like distances from Sun-like stars. A new discovery completes the roadmap.

Pleasure is never bad — but its source can be.

Our brains weren’t built for the amount of info we deal with now. That’s why scientists have made the case for a “second brain” — a place to dump ideas so you can actually see how they connect later.

With a waning Moon and a denser-than-ever debris trail, 2025's Geminids might be the year's best meteor shower, and 2026's could be amazing.

Ninety million years after our lineages split, humans are beginning to listen to whales in a new way. Marine biologist David Gruber shares the work that has become his life’s pursuit: learning how to hear the planet’s largest mammals.

In this excerpt from "The Hypocrisy Trap," Michael Hallsworth explains why accusations of hypocrisy don’t always damage credibility.

Media trailblazer Tim O’Reilly tells Big Think why AI requires "get yourself dirty" work — and warns us not to buy the hype.