The International Bathymetric Chart of the Southern Ocean (IBSCO) has taken five years to compile and update this map, which was first published in 2013. Current Edition Topics ...

A prime example is Mars' dichotomy, or the boundary between its southern and northern hemispheres ... Still others believe the Red Planet's long-gone ocean sculpted the drop.

The Southern Ocean, which circles the globe without being blocked by land, is home to the Antarctic Circumpolar Current (ACC), the longest of the world's ocean currents. Also known as the "channel ...

Seafarers have known about the Gulf Stream—the Atlantic Ocean's western boundary current—for more ... When it reaches the southern tip of Africa, it sheds swirling vortices of water called ...