Ocean

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?

The sounds were coming at 30-minute intervals, according to an internal email update sent by the Department of Homeland Security's National Operations Center, which could mean the passengers on board are still alive.

Joseph Dituri, who recently broke the record for the longest time spent living underwater, tells Live Science what he has learned during his time beneath the waves.

After months of warning, experts have confirmed that the ocean-warming event El Niño is here and will gradually strengthen into the winter, with a potential worldwide climate impact.

One, four or five? Not all experts agree on the number of oceans on our planet.

A new study cataloged all the species uncovered by research expeditions in the Clarion-Clipperton Zone, which has become a potential hotspot for deep-sea mining.

The Sentinel-6 Michael Freilich satellite recorded Kelvin waves moving eastward across the Pacific — a phenomenon often considered a precursor to El Niño.

A huge drop in sea levels trapped extremely salty water in the Indian Ocean, which then gushed into the Atlantic when currents changed 15,000 years ago.