Features

Book In the book "The Call of the Honeyguide," applied ecologist Rob Dunn explores mutually beneficial relationships between different species. But Dunn argues the relationship between humans and cats may force a rethink of what shape these mutualisms can take.

Spring in the Northern Hemisphere is the time to explore and capture breathtaking deep-sky galaxies, from bright showpieces to faint cosmic challenges.

A man being treated for a urinary tract infection turned out to have a rare "supernumerary kidney."

Everything you need to know about telescope magnification and eyepieces

Earth from space A 2011 astronaut photo shows off a series of colorful mini-lakes that appeared around the edge of a giant salt flat, known as the Etosha Pan, following a major flooding event.

Astonishing Artifacts The giant, one-of-a-kind statue of a Roman emperor on horseback depicts him addressing his troops.

Astronomers combined Hubble's small-scale details of stellar death with Euclid's wide view of cosmic environments to take a closer look at the iconic Cat's Eye Nebula.

The Indus Valley script dates back around 4,000 years but has yet to be deciphered. Can AI help decode it?

Earth's shadow follows the planet as it orbits the sun. You can get a sense of its enormous, awe-inspiring size by seeing this silhouette cast on objects ranging from satellites to the moon.

Sørvágsvatn, also called Leitisvatn, is the largest lake in the Faroe Islands. Viewed from a certain angle, one side appears to hover above the Atlantic Ocean.