El Niño is now stronger than at any point in the last 1,000 years, study finds

“One more warning sign here of what we're facing in a warmer world.” [...]

How Do Astronomers Find Planets in Other Solar Systems?

Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits. [...]

Cosmic Voids May Contain the Universe’s Best Secrets

Once dismissed as empty expanses between galaxies, cosmic voids are becoming one of the most promising tools for probing the universe’s biggest mysteries. [...]

"Million-year-old" fossil skulls from China are far older—and not Denisovans

The revised age may help make sense of 2-million-year-old stone tools elsewhere in China. [...]

The best advent calendars for 2025: Our top picks from Pokémon, Funko Pop, Lego and others

Why settle for tiny pieces of chocolate when you could unwrap a Pokémon card, a Funko Pop or a Star Wars LEGO ship instead? Advent calendars have gone full geek mode, with options for fans of movies, [...]

Robots Could Help Humans Find Resources on the Moon and Mars

Scientists tested a semi-autonomous robot with legs and an arm to see how well it could travel on its own. [...]

Some AI tools don’t understand biology yet

A collection of new studies on gene activity show that AI tools aren't very good. [...]

Before the Next Planet Parade, Don't Miss This Week's Full Sturgeon Moon

The full moon shines bright in three days, just before the peak of the Perseid meteor shower and 11 days before the next planet spectacle. [...]

Cockatoos know 30 distinct dance moves

Ten of 21 known cockatoo species exhibit dance behavior, and one bird executed 17 unique moves. [...]