The ocean's deep-sea bed is scattered with ancient rocks, each about the size of a closed fist, called "polymetallic nodules.

SAN JUAN, Puerto Rico — A Canadian company announced Tuesday that its U.S. subsidiary has submitted applications to the ...

By Ernest Scheyder (Reuters) -Deep-sea mining firm The Metals Co asked the Trump administration on Tuesday to approve its plans to mine the international seabed, making it the first such company to ...

The ocean is one of Earth's greatest enigmas, as it completely overpowers our planet, covering much more area than land, and ...

The ocean's deep-sea bed is scattered with ancient rocks, each about the size of a closed fist, called "polymetallic nodules.