Ocean

The golden, dome-shaped object was discovered in the Gulf of Alaska during an NOAA expedition and after bringing it to the surface, scientists still have no idea what it is.

The International Atomic Energy Agency — the UN's atomic watchdog — has said the release meets international safety standards with a "negligible radiological impact."

Sizzling ocean temperatures in the east-central tropical Pacific throughout July indicate there is a good chance El Niño conditions will remain strong for the next six months.

By combining high-definition maps with sensors that detect changes in the water column, researchers have created a "centimeter-scale" picture of how currents and tides shape the Monterey Canyon.

The unprecedented water temperatures — reaching up to 95 degrees Fahrenheit in some places — could intensify storms and hurricanes in the Sunshine State.

Scientists have puzzled over the origins of a gravity hole in the Indian Ocean for years. Now, researchers think the sunken floor of an extinct ocean could be the cause.

Photos show what looks like a line between the Atlantic and Pacific with different water colors on either side, but is there some kind of barrier or do the two oceans mix?

The submersible, which has been missing since Sunday, is believed to have been crushed by high pressure, discovery of debris near the Titanic wreck has revealed.

The five-person, custom-built submersible lost contact with the surface near the wreck of the Titanic on Sunday, and has 40 hours of emergency oxygen remaining.

Rescuers have detected noises repeating every 30 minutes from around the last known location of the Titan submersible. Could this make a rescue more likely?