Researchers say the polymetallic nodules that mining companies hope to harvest from the deep-ocean seafloor may be a source of oxygen for the animals, plants and bacteria that live there. This ...

Marine scientists have welcomed an unexpected asset to their underwater camera crews: sea lions. By attaching video cameras to sea lions' backs, researchers are not only learning about hyper-valuable ...

A new study about Earth's northernmost seafloor hydrothermal system shows even more variety in vent styles than previously thought. The study has important implications for understanding the origin of ...

Yeti crabs, shrimp, sea worms and starfish. And that’s just to name a few. They live between 1,800 and 3,600 meters below the Pacific Ocean off the shores of Costa Rica. A team of scientists, led by ...

In the 1960s, the U.S. Navy was exploring the other "final frontier" — the sea. A series of underwater habitats called "Sealabs" were constructed for scientific exploration on the ocean floor. JOHN F ...

Around much of the planet, an aquatic mystery leaves scientists in the dark. “For most of the ocean, we don’t know what the bottom looks like,” said Nathan Angelakis, a doctoral student at the South ...