Oceanography is the study of the oceans as ecological systems. In this section, learn about topics like currents, deep-sea research or how rogue waves work.

There's a Second Huge Plastic Garbage Patch in the Pacific

Scientist and oceanographer Charles Moore confirmed the existence of a second huge plastic garbage patch in the Pacific Ocean.

What Happens Next to A-68, Antarctica's New Gigantic Iceberg?

Scientists are tracking the massive iceberg A-68, which recently calved from Antarctica's Larsen C ice shelf, to see where it drifts and whether it breaks up.

How Do Scientists Track Sea Level?

Measuring sea level has changed almost as much as the tides during the 200 or so years scientists have been tracking it. Find out how it's tracked today.

The World's Largest Waterfall Is Deep Underwater

The Denmark Strait cataract dwarfs every other waterfall in the world, but you can't see it because it's deep under the Atlantic Ocean.

Scientists Warn Climate Change Is Suffocating the World's Oceans

Climate change may be melting glaciers, but it's also reducing the oxygen of the world's oceans. Without oxygen, many marine organisms may no longer be able to survive.

Probing the Undersea Dead Zone Known as the Hot Tub of Despair

Take a look inside the deadly brine pool in the Gulf of Mexico that's captivating the world's attention.

Mariana Trench Exploration Finds More Weird New Underwater Species

The NOAA ship Okeanos Explorer just wrapped up the third leg of its recent expedition into the deep Pacific waters, finding a number of cool new species.

New Mariana Trench Expedition Already Making Some Really Cool Finds

A mind-boggling number of Earth’s species have yet to be discovered. A NOAA research team aboard the Okeanos Explorer is hunting in the deepest hole in the ocean.

Divers Find Roman-era Sunken Treasure in Shipwreck Off Israel

With incredibly well-preserved metal figurines, lamps, coins and more, the sunken treasure find in Caesarea's harbor is being called the best of its kind in decades.

Underwater Icicles Are Salty, Weird-Looking and Deadly

Underwater icicles, also called brinicles or sea stalactites, form when super-cold brine meets normal seawater. The sub-zero phenomenon can kill some sea life.