The never-before-heard audio clip published online Friday captures staticky white noise followed by a loud boom and reverb — ...

The Navy's Surveillance Towed Array Sensor System (SURTASS) was built to counter the Soviet submarine threat in deep water, but the Navy now plans to use it against the regional—shallow water ...

While NASA was trying to put a man on the moon, the Navy was quietly conducting a series of tests to see if humans could live and work on the deep seafloor.

Communicating with underwater drones is harder than with those in the air because radio waves can’t travel through deep water. The vessels can, though, surface to receive instructions.

"At the time, the director strapped himself in with just his feet on the wire rig, hanging completely upside down while ...