ocean

The carbon dioxide in our atmosphere is changing the seas, but we could turn things around.

The argument boils down to how ocean depth is measured and whether the bottom of the Mariana Trench is “deadass flat.”

Five Deeps mission completes record-setting dives to the bottom of five oceans.

Adventurer Victor Vescovo hopes to change the landscape of exploration with his deep-sea submersible.

Some rare good news for coral reefs.

It was a foot long back when most animals were smaller than your pinky.

Watch the eerie, beautiful video.

Global warming is expanding the territory of some terrifying microbes.

And they're as scary as they sound.

See the unsung heroes of the sea.