World War II submarines were some of the most feared and effective weapons of the war. Operating mostly in stealth, these underwater vessels could strike without warning, often sinking massive enemy ...

Submarines can also use underwater optical communication to transmit and receive data while submerged. This technology includes light-emitting diodes (LEDs) and laser diodes (LDs), which can be ...

Submerged, the Dolphin could travel at about 8.6 mph. Despite being engineered to operate underwater, the Dolphin's top speed was hampered by its hull, propulsion system, and other factors.

A suspected 'narco-submarine' was discovered partially submerged at the entrance to the Camarinas-Muxia estuary off the coast of Galicia, Spain, on Wednesday. Authorities suspect the vessel was ...

For the first time, the U.S. Navy successfully recovered an unmanned underwater vehicle from a submerged submarine—without diver intervention.

A one-of-a-kind system allows Spain’s Navy to operate underwater for nearly a month without surfacing, thanks to proprietary ...

The sleek hull of the USS Arkansas (SSN 800) slid into the James River on July 2, 2025, marking a significant milestone in the U.S. Navy’s relentless pursuit of undersea dominance. Built by Huntington ...

For ten days the sea south of Sardinia (offshore) is declared dangerous. The warning is from the Coast Guard and is linked to "submarine activity in immersion": at the request of the Navy it was ...

French officials recently announced the discovery of Camarat 4, the deepest shipwreck ever found in French waters. The site ...

NIXON'S NEW SUBMARINE HAS EARS AND EYES; Inventor Says It Can Detect a Foe Miles Away. THEN BLOW HIM TO PIECES Destroyer Will Be Nearly Submerged When Afloat and Can Be Carried on a Battleship's Deck.

“Submarine caves are a treasure trove of useful substances that have yet to be known,” Ise said. PITCH-DARK EVEN IN DAY Expeditions inside submarine caves carry a constant element of danger.

The two systems are designed to work in combination with unmanned aerial vehicles (UAVs), maritime patrol aircraft, surface ...