Meet the Spilhaus projection, an ocean-centric map of the world's waters ... the Mariana Islands. Challenger Deep, the deepest of the Mariana Trench's three "pools," was named after the British ...

Civilian exploration may be the official mission of a Chinese deep-sea research ship that sailed clockwise around Australia over the past week and is now loitering west of the continent. But maybe ...

A Chinese vessel is suspected of mapping the seafloor around U.S. allies Australia and New Zealand to support submarine ...