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 ...

In 1917, a civil engineer pioneered the first deep-sea vehicle to attempt filming underwater. A century later, we have James ...

In addition to talking with one another, submarines need to receive orders while deeply submerged and far from home.

A groundbreaking study has found one of the highest concentrations of deep-sea litter ever detected at the deepest point of the Mediterranean Sea. At such a critical moment in US history, we need ...

The most recognizable color for many people there is blue, because water molecules ... Sonar rules the deep ocean, enabling the identification of objects through sound waves. Submarines use ...

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.

Ventilation is an important process within the global ocean, where waters sink to deeper layers, are transported by deep currents, and eventually upwelled back to the surface. This process affects the ...

The projects featured on these pages frequently rule the air, the ground, the rails, and even the waves, but very rarely do they rule the deep. Building a submarine is hard, and thus it’s a ...