There might be a type of exoplanet without dry land. They're called "Hycean" worlds, a portmanteau of "hydrogen" and "ocean." They're mostly or entirely covered in oceans and have thick hydrogen ...

Forests are in the mountains, rivers flow through the land, and the ocean spreads out beyond them. We have understood these ...

SUDDENLY, out of darkness, a ghostly city of gnarled white towers looms over the submersible. As the sub approaches to scrape a sample from them, crew-member Kevin Hand spots something otherworldly: a ...

One year ago, Congress defunded public media. Now that we're 100% community funded, please become a sustaining member or increase your existing membership today. The Palisades Fire destroyed thousands ...

Between 252 and 66 million years ago, the ocean underwent a revolution. That's when plankton with calcium carbonate skeletons colonized the open ocean. When they died, their remains fell like snow ...

The ocean plays a vital role in regulating the climate, storing roughly 50 times more carbon dioxide (CO2) than the atmosphere. Marine life plays a significant part in this process, as organisms ...

If you liked this story, share it with other people. A deep-sea expedition has recorded 30 previously unknown species from one of the planet’s most inaccessible regions, at depths of up to 700 meters, ...

Short answer: no, not by enough to make the whole ocean inhospitable. The ocean is salty because the elements that make up salt (mostly sodium and chlorine, but also sulphur, magnesium, calcium and a ...

If you liked this story, share it with other people. Scientists have known for decades that soaring atmospheric carbon dioxide emissions are causing changes in ocean chemistry, threatening marine life ...

Bursts of laughter echo from a speedboard bobbing on the turquoise Mozambique channel, miles off the west coast of Madagascar. It's a sunny morning. The only land in view is a tiny islet of white sand ...