Learn how time scales for objects thousands versus millions of years old could be better synchronized.

When hundreds of eerily perfect circles were discovered on the bottom of the Mediterranean Sea, theories abounded about what ...

A larger shelf means legal access to more of the ocean floor’s riches: animals, hydrocarbons, and, perhaps most important, minerals to power electric-vehicle batteries. America has no immediate plans ...

In the 1960s, the U.S. Navy was exploring the other "final frontier" -- the sea. A series of underwater habitats called "Sealabs" were constructed for scientific exploration on the ocean floor.

In the early 1950s, Marie Tharp began connecting dots to map the ocean floor, using sonar technology. Sonar detects underwater objects by timing the echo of a soundwave and was originally ...

Scientists discover an ancient mud volcano in the Barents Sea, providing a unique habitat for vulnerable Arctic marine ...