In the depths of the ocean, a colossal blue hole has been ... Measuring an astounding 274 meters in depth, this underwater formation nearly rivals the height of the iconic Eiffel Tower.

A Boston University led team of scientists analyzed a Pacific Ocean seamount that is teeming with biologically diverse corals and sea creatures ...

Time, water, and geologic forces have converged to create underwater sinkholes where ... and gypsum bedrock — rock that was formed from the remains of saltwater seas that once covered the ...

From a ballet of white-tip reef sharks to a cardinal fish releasing freshly hatched babies from its mouth, these underwater ...

Off the coast of American Samoa, an active underwater volcano towers above the seafloor, its upper crater the site of a ...

A quirky science story emerged from the ocean depths ... Seamounts are underwater mountains. Casual viewers might miss what’s really going on with the road-like formation.

When the massive space rock that slammed into the Earth some ... scientists believe the incredible event may have also triggered countless underwater volcanoes to spontaneously spring to life ...

Earth bubbles and broils beneath an underwater peak called Axial Seamount, located 480 kilometers (300 miles) off Oregon's ...