A 2022 satellite photo shows a large plume of discolored water rising from the undersea Kavachi volcano, during an eruption ...

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

North Korea has unveiled for the first time a nuclear-powered submarine under construction, a weapons system that can pose a ...

SEabed and Anti-submarine warfare Capability through Unmanned featuRe for Europe (SEACURE) is a new coordinated effort to ...

North Korean state media on Saturday released photographs of national leader Kim Jong Un inspecting progress on a ...

Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be ...

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.

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.