Photos show what looks like a line between the Atlantic and Pacific with different water colors on either side, but is there some kind of barrier or do the two oceans mix?

A report from a European news wire agency on the reversal of an important ocean current has sparked alarm online.

The Pacific Ocean is by far the world's largest ocean, more than five times wider than our moon. But why is the Pacific so big?Covering about 63 million square miles (163 million square kilometers) — ...

A groundbreaking study in the journal Science, has unveiled how deep ocean currents—known as global overturning ...

A patch of the Atlantic Ocean just south of Greenland is cooling while much of the world warms. The origin of this "cold blob ...

Do the Pacific and Atlantic Oceans mix? Explore the science behind their visible boundary, the role of salinity and temperature differences, and how Earth’s thermohaline circulation affects them.

The first hurricane in the Pacific doesn’t typically arrive until the last week of June. Three have been named so far this season.

Hurricane season starts earlier in the Eastern Pacific on May 15, while the Atlantic season begins on June 1 due to a key difference.

The Pacific Ocean covers more than 30% of the Earth's surface. Of the world's oceans (Pacific, Atlantic, Indian, Arctic and Southern), the Pacific is also the oldest and the deepest.

Scientists are completely baffled by the Atlantic's cooling rate, but nobody can figure out why it's cooling so fast.