Researchers have uncovered surprising evidence that the deep ocean’s carbon-fixing engine works very differently than long ...

Halalaimus is a microscopic nematode genus commonly found in sediment on the seafloor. It lives 1–5 cm below the sediment ...

Countries are still debating whether to mine the seafloor for minerals, but exploratory efforts have already begun.

Scientific divers have navigated a series of treacherous dives more than 330 feet deep in an attempt to unravel the mysteries of deep ocean reefs. They’re finding new species — and evidence of both cl ...

Earth's deep mantle stored enough water in rocks to equal one ocean during our planet's early molten days, helping explain ...

Researchers found that eroded lava rubble beneath the South Atlantic can trap enormous amounts of CO2 for tens of millions of ...

Some 4.6 billion years ago, Earth was nothing like the gentle blue planet we know today. Frequent and violent celestial impacts churned its surface and interior into a seething ocean of magma—an ...

The ocean covers most of our planet, yet so much of it is still a mystery. Beneath the surface is a massive, dark world where ...

Move aside, Bermuda Triangle: The newest North Atlantic mystery lies beneath this enigmatic archipelago. Scientists have discovered a strange, 12.4-mile-thick (20 kilometers) rock layer below the ...

Oceanic manta rays dive to record depths of 1,250 meters (4,100 feet), according to a first-of-its-kind study to examine in detail the extreme deep-diving behavior of these rays. Researchers tracked ...