Oceanography

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.


How Volcano Vent Tubeworms Work

Tubeworms aren't antisocial; they just prefer an environment that's a little different from the rest of us — one that happens to be as hot as an oven and riddled with bacteria.

Why is seawater salty?

If you've ever been pulled underwater at the beach and came up sputtering with a mouthful of salt water, you might wonder where the ocean picked up that briny flavor. Read on to learn just where all that salt comes from.

Do we really know more about space than the deep ocean?

There's still a lot we don't know about the world. A thousand years ago, we thought we could literally sail off the edge of the planet. Good thing we're quick learners. But while space may be the final frontier, the ocean may be the greater mystery.

What is the Baltic Sea anomaly?

There's no denying it: "Anomaly" is a great word, full of danger and mystery. So when an underwater object is declared a bona fide anomaly, it's no surprise our ears perk up a bit. But is the Baltic Sea anomaly worth the hype or just a big old dud?

Could Earth ever get a new ocean?

To say geologic time moves at a snail's pace is an insult to snails. Our planet's continents are always in flux: Could a new ocean grow amid those incredibly slow changes?

10 Treasures We’ll Lose as Sea Levels Rise

The oceans are rising, and they're threatening to take down some of the world's brightest cultural gems. Here are 10 of the most notable spots potentially endangered by climate change.

The Pacific Ocean trash vortex is explained in this article. Learn about the Pacific Ocean trash vortex.

What is the "milky sea" phenomenon?

For hundreds of years, sailors have recounted coming upon miles and miles of pale, milky, glowing waters, sometimes stretching as far as the eye can see. So what causes this milky sea phenomenon?

How does desalination work?

Desalination has long been considered too expensive and too energy-intensive to make much sense. But with newer technologies, that line of thinking is changing. What are some of the most interesting desalination projects on the planet?

How Desalination Works

Very little of the world's water is usable because of its high salt content, but a process known as desalination may help change that. How does desalination work to turn salt water into fresh water?