The vast ocean hides a world that continues to amaze and sometimes startle us. Divers and fishermen have shared incredible footage of marine animals that look like they belong in another dimension.

Han’s team estimates that the area covered by salty seawater in this Southern Indian Ocean region has shrunk by about 30% over the past 60 years. They describe it as the fastest freshening seen ...

The geoid (the surface of equal gravitational potential of a hypothetical ocean at rest) serves as the classical reference ...

The prospect of heat waves without end, increasingly destructive floods, relentless drought, rapidly rising sea levels, and the risk of “point of no return” tipping points require humanity to swiftly ...

Many experts had thought sharks didn’t exist in the frigid waters of Antarctica before this sleeper shark lumbered warily and briefly into the spotlight of a video camera, researcher Alan Jamieson ...

By 2050, offshore wind power capacity in the North Sea is set to increase more than tenfold. Researchers at the Helmholtz ...

Fresh evidence from sediment cores, satellite records, and deep-ocean sensors is converging on a troubling finding: meltwater ...

But scientists say a warming world is throwing off this balance. As Arctic ice melts, freshwater enters the North Atlantic — making the ocean water less dense, so it is less likely to sink. As a ...

The southern Indian Ocean off the west coast of Australia is becoming less salty at an astonishing rate, largely due to ...