Lockheed Martin is building an unmanned underwater vehicle designed to clamp onto the outside of a submarine, hitch a ride ...

Japan’s Taigei-class submarine—the “Big Whale”—is the first submarine class designed entirely around lithium-ion batteries, ...

The list includes Los Angeles-class fast attack submarines USS Newport News and USS Alexandria, and the Ohio-class missile ...

Submarines have become one of the most powerful and least visible forces in modern warfare. Capable of operating undetected for months while carrying advanced missiles and torpedoes, these vessels ...

The H.L. Hunley was one of the most significant submarines in military history, but when it sank, the fate of its crew ...

North Korea's state media released photos Thursday of what it said was the hull of a nuclear submarine. Its leader denounced South Korea's plans... SEOUL, South Korea — An arms race for ...

Submarine propeller designs are highly classified due to their critical role in acoustic stealth and survivability. Cavitation noise from propellers is a major vulnerability, and advanced designs aim ...