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 ...

At the bottom of the Mariana Trench, roughly 10,935 meters below the Pacific surface, water temperatures hover just above ...

Microplastics are so pervasive they have even been discovered in the deepest known part of the ocean: the Mariana Trench. While it has been long understood that microplastics exist on the surface of ...

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 ...

Ocean motion plays a key role in the Earth's energy and climate systems. In recent decades, ocean science has made great strides in providing general estimates of large-scale ocean motion. However, ...

An international team of scientists led by researchers from the Institut de Ciències del Mar (ICM-CSIC) in Barcelona has uncovered the ocean's intricate web of microbial interactions across different ...

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, ** ...