A San Antonio research institute has added a new hyperbaric pressure vessel to its ...

Challenger Deep sits at the bottom of the western Pacific’s Mariana Trench, roughly 10,935 meters below the ocean surface.

The submersible vehicle that was lost at sea is part of a relatively new effort enabling tourists and other paying customers to explore the depths of the ocean, the vast majority of which has never ...

Scientists recorded the first live, healthy goblin sharks in their deep-sea home, expanding the species' known range and ...

The deepest regions of Earth's oceans, known as the abyssal and hadal zones, lie at least as far under the water's surface as Mount Rainier's peak rises above the land surface. These great depths of 4 ...

For centuries, the deepest parts of the ocean remained beyond human reach, hidden beneath crushing pressure and perpetual ...

“The Underworld” is Casey’s most sprawling and ambitious book. She’s writing about the ocean waters classed as the abyssal and hadal zones — 20,000 to 36,000 feet below sea level. These sunless waters ...

Transcript: Every day, fishermen across the Bahamas head out to the ocean to harvest their catch. But now some of those fishermen are also harvesting data to help forecast hurrica ...

The movement of carbon between the atmosphere, oceans and continents—the carbon cycle—is a fundamental process that regulates Earth's climate. Some factors, like volcanic eruptions or human activity, ...

We're not far from where the expedition launched on Sunday. It was an hour and 45 minutes into the dive that the vessel lost contact with its mother ship. It's been lost and silent since then. Now, ** ...