TOKYO -- The world's deepest-diving submarine has disappeared in the choppy Pacific Ocean off Japan, a setback to deep-sea research on everything from earthquakes to rare bacteria. Kaiko, a bright ...

SSN was a Soviet nuclear-powered attack submarine (SSN) designed for high-speed, deep-diving operations. Built primarily from ...

Titanium promised the Soviets deeper-diving, faster, low-magnetic submarines like Alfa and Sierra, but it came with brutal ...

Matus Smutny, a features contributor to The War Zone, had a unique opportunity to visit the German Navy’s submarine base and its state-of-the-art hunter-killer submarine fleet. The resulting feature ...

Submarines are pretty cool bits of kit. They can offer researchers an unrivaled view of the ocean floor, help search out missing wrecks beneath the waves and can even ferry about the rich and famous, ...

During the height of the Cold War, the rivalry between the United States and the Soviet Union spurred several technology-oriented races where both countries were trying to outdo the competition. The ...

If you've ever wondered what the safest place is to be during a tsunami, your first thought is most likely high on a mountaintop somewhere. But what about the depths of the ocean, in the fortified ...

The world's deepest-diving submarine has disappeared in the choppy Pacific Ocean off Japan, a blow to deep-sea research on everything from earthquakes to rare bacteria, an official said Monday. Kaiko, ...