The bold question-askers at What If explore what happens when humans dump 3.5 billion tons of trash into the deep ocean.

Rare footage reveals an elusive deep-sea predator showcasing surprising social behaviors.

Case in point: Scientists from Tokyo University and Hokkaido University in Japan stumbled across some mysterious jet-black ...

In the South China Sea, off China’s Hainan Island, researchers dropped the carcass of a cow about 5,340 feet down to the ...

This story was supported by the Pulitzer Center’s Ocean Reporting Network, where Elizabeth Claire Alberts is a fellow. On ...

A Japanese torpedo slammed into the USS New Orleans in 1942, tearing off nearly one-third of the ship and killing over 180 ...

With the backing of the US government, a Canadian company is poised to sidestep UN laws and start vacuuming what it deems battery-grade metals from international waters.

NASA's Cassini spacecraft has flown through the plumes of water vapor spewing out from the ocean inside Saturn's moon ...

The vital tuna, a cornerstone of both the region's marine ecosystem and its economic stability, is facing unprecedented ...

Tuna migration patterns in the Pacific are changing. And the stakes are high, not just for the economies and livelihoods of ...

Trace metals such as iron or zinc that are stored in deep-sea sediments are lost forever to phytoplankton on the ocean surface. This is what geochemists believed for a long time about the cycle of ...

An underwater volcano near Tonga revealed how sediment spreads, disrupts marine life, and raises questions about deep-sea ...