The Marianna Trench is the deepest area of the ocean, and therefore one of the most mysterious underwater regions in the ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: A manned submersible dove over 31,000 feet below sea ...

The deep ocean has long been viewed as a quiet realm, largely isolated from the dynamic processes that shape Earth's climate.

By listening to the sounds of the ocean, researchers can determine its alkalinity and monitor changes in acidity of seawater.