When Tim Gray learned the U.S. Navy planned to name a sub after the battleship Arizona that was sunk at Pearl Harbor, he knew ...

A submarine that never breaks the surface can now send out an underwater drone and bring it back through the same torpedo tube it left from. That is the result of a test completed at Seneca Lake in ...

Two U.S. Navy fast-attack submarines surfacing side by side off Guam — a rare sight for vessels designed to remain unseen — has drawn attention online and prompted discussion about undersea signaling ...