Submarines' top speeds are different when they're underwater than when they're cruising on the surface -- and not always in ...

North Korea has unveiled for the first time a nuclear-powered submarine under construction.

Military submarines are out there, lurking under the water, ready for action, but how long can they stay down there? It's ...

North Korea has conducted a slew of underwater-launched ballistic missile tests since 2016, but all launches were made from the same 2,000-tonne-class submarine which has a single launch tube.

But compromises are necessary given that we’re 100ft underwater, tightly sealed (I ... is now offering 45-minute trips in a four-tonne submarine. The justly famous and freshly spruced-up Huvafen ...

In September 2023, North Korea unveiled what it claimed was its first tactical nuclear attack submarine capable of carrying out an underwater nuclear attack. At that time, Kim announced a plan to ...

Introduction An Underwater Communication System is a specialized network designed to transmit data, voice, or control signals beneath the water ...

North Korea has conducted a slew of underwater-launched ballistic missile tests since 2016, but all launches were made from the same 2,000-ton-class submarine which has a single launch tube.