Satellite data reveals 21% of oceans have darkened, affecting photic zones and marine life. Researchers warn of severe effects on global marine life and ecosystems.

Affected swaths of ocean are roughly the same size as Africa, China, Europe and North America’s land areas combined.

Seafood shoppers might notice higher prices, recreational divers and snorkelers will find murkier waters, and even worse; ...

The ocean might be deep and mysterious, but not all of its life is bathed in darkness. Close to 90% of marine ecosystems ...

Close to the summit of an underwater mountain west of the Mid-Atlantic Ridge, a jagged landscape of towers rises from the ...

Off the coast of Belize, in the Caribbean Sea, lies a captivating natural wonder familiar to any nature photography ...

Deep beneath the sea, off the coast of Indonesia, a discovery is challenging long-held beliefs about early human life in ...

Over 20% of oceans are darker than in 2003—shrinking marine habitats, killing phytoplankton, and threatening global food ...

To survive the deep ocean, sea creatures need all kinds of adaptations that give them alien-like appearances, like huge eyes ...

Buried beneath the sea off the coast of Indonesia, scientists have made a groundbreaking discovery that could rewrite the ...

Researchers are trying to rebuild sea ice above the Arctic Circle so it can reflect the sun’s warming rays, slowing climate ...

A haze of ice crystals in the air created a halo around the low sun as three snowmobiles thundered onto the sea ice on a ...