Gallery: Humans Killed the Aral Sea. Now, It’s Come Back to Life

While oil is known to float, new research finds that over time it can permeate even extremely deep marine habitats, with animal populations declining by as much as 80 percent.

As coastlines change, so do surf breaks. That may spell the end for premier waves and the tourist economies that depend on them.

Scientists can’t agree why reefs in the Red Sea have long been immune to bleaching. The answer could be the key to saving these tough corals as climate change begins taking its toll.

Scientists left structures up to 100 meters under the surface. Here’s what they found when they retrieved them 10 years later.

The death of a lab worker in Russia has authorities looking at whether plague played a role. Even if it did, though, the odds of it spreading are very low.

With no accurate Big Tech mapping app to help him, Anas Hattab launched a Telegram group to get himself home at night. Now nearly 350,000 Palestinians rely on it to navigate the occupied West Bank.

Seven of 16 planetary vital signs are in their most extreme state ever recorded, and El Niño is here to make matters even worse.

Ancient plants reveal that the vestiges of the North American ice sheet started expanding a few thousand years ago, but that climate change caused it to reverse course.

The new image isn’t just stunning—it may also provide clues about how this star survived its own explosion.

Five hauntings from the other side of technology.

Auk’s original countertop garden is on clearance for $199, with everything you need to start growing herbs indoors.

Two orbiters have long outlasted their expected lifespans and completely reshaped our understanding of the Red Planet, all while operating 140 million miles from Earth.