Deep underwater diving introduces dangers most people never consider. Pressure increases, nitrogen builds up, and judgment can become impaired without warning. Every meter deeper reduces safety ...

Researchers studying deep-sea processes off Hainan Island made an unexpected discovery. Pacific sleeper sharks swam from cold, northern waters into the tropical South China Sea. The rare sighting has ...

An underwater volcano off the coast of Oregon is gearing up for an eruption, according to volcanologists who are monitoring for activity. The Axial Seamount-- an underwater volcano located about 300 ...

Close to the summit of an underwater mountain west of the Mid-Atlantic Ridge, a jagged landscape of towers rises from the ...

The Axial Seamount, an underwater volcano off the Pacific northwest coast, has been showing signs of an impending eruption, researchers at Oregon State University said The volcano has seen an increase ...