Four U.S. Navy aircraft carriers—all warships of the 100,000-ton, nuclear-powered Nimitz class—and two Chinese "flat-tops" are underway in the Pacific Ocean this week.

Satellite images show the strong Pineapple Express atmospheric river as it barrels from the Pacific Ocean toward the West Coast. Latest U.S.

As for ocean basins, the Pacific Ocean is the world's largest, covering 63 million square miles, with deep depths averaging 13,000 feet. Drainage, structural and ocean are the major types of basins.

A part of the Pacific Ocean earmarked for deep-sea mining is home to a surprising variety of life, images from a recent voyage to the Clarion-Clipperton Zone show.

Deep Sea Vision says its sonar image equipment spotted an object in the Pacific Ocean that closely resembles the shape and size of Amelia Earhart's aircraft.

These wonders are just an initial snapshot of fantastic creatures discovered 16,400 feet (5,000 meters) beneath the surface of the Pacific Ocean in a pristine area that’s earmarked as a site for ...