The Pacific covers an astonishing 63 million square miles and contains more than half of Earth's "free" water - water that isn't bound to minerals in rocks.

Bizarre structures in Pacific could change understanding of Earth Swimmers watch the sun set behind clouds over the Pacific Ocean seen from Waikiki Beach in Honolulu, Hawaii, Saturday, Dec. 31 ...

Mauna Loa on Hawaii's Big Island has long been designated the world's largest volcano, rising more than 30,000 feet (9,170 meters) above the seafloor of the Pacific Ocean and encompassing more ...

NASA's Earth Observatory has spotted a newly birthed island in the Pacific ocean and it's already grown to at least six acre wide.