President Barack Obama will announce Tuesday plans to create what could be the world's largest marine sanctuary, an initiative that will protect large swaths of the Pacific Ocean from overfishing, energy exploration and other human activities, according to White House officials.
A vast portion of the Pacific Ocean - controlled by the tiny island nation of Kiribati - will be protected with a commercial fishing ban so that its diverse populations of marine life can recover and repopulate.
Scientists have discovered evidence of a vast water reservoir trapped hundreds of miles beneath the surface, capable of filling Earth's oceans three times over.
It seems blatantly obvious that an extremely cold climate spurred Earth's last Ice Age - officially known as the "Last Glacial Maximum" (LGM) - but scientists have long suspected that other factors were at play, and are just now piecing together the rest of the puzzle.
The grandson of the great 20th-century oceanographer Jacques-Yves Cousteau will attempt to break his grandfather's underwater record by spending 31 days under the sea.
Seafloor experts have just created a new ocean map detailing underwater terrain where the missing Malaysia Airlines flight 370 might be located. The new view could also shed light on what type of underwater vehicles might be used to find the missing airplane and where any debris from the crash might have ended up.
Rutgers University scientists are planning to bombard a strip of the seabed off Long Beach Island with sound waves in a month-long, climate change-related study this summer, but are being met with strong opposition by environmentalists.
A deep-sea graveyard discovered by chance off the coast of Angola may help scientists reveal the fate of dead ocean giants, according to findings published in the journal PLOS ONE.
An unmanned, deep-sea research sub dubbed Nereus was lost while diving 6.2 miles (10 km) beneath the surface, and likely imploded during its mission, reports indicate.
A deep-water creature once thought to be one of the world's largest sea anemones actually belongs to a new order of marine life.
After all the excitement over the recent catch and release of the goblin shark caught in the Gulf of Mexico, fisherman off the coast of Japan nabbed a rare megamouth shark recently.
An international team's groundbreaking research has revealed a new approach for better understanding the harmful effects pesticides have on aquatic invertebrates like shrimps and snails.
A new seafloor survey revealed just how much the ocean is speckled with litter. Even in the deepest ocean depths you can find bottles, plastic bags, fishing nets and other types of human litter, researchers describe in the journal PLOS ONE.
While investigating a shipwreck, government scientists uncovered two "giant flowers" on the ocean floor which in fact turned out to be asphalt volcanoes, reports reveal.