Large-scale currents are the conveyor belts of the ocean, transporting water and nutrients and controlling Earth's climate. Surface currents are relatively easy to measure and track. But those in the deep ocean are mostly a mystery. Now, a new study ...

An artistic visualization of ocean currents from NASA has people mesmerized learning about our planet's underwater highways.

Something strange is happening beneath the surface of the Atlantic Ocean, and scientists are paying close attention. The Gulf Stream, one of the most important ocean currents on Earth, is showing signs of significant weakening.