Submarines are a vital part of the United States Navy, but there is one in particular that stayed at sea for 727 days. Here's ...

North Korea's leader Kim Jong Un inspected the country's nuclear-powered submarine, claimed to be 8,700 ton, as he called Seoul's nuclear-powered submarine development plan "an offensive act" - KCNA ...

At the Intrepid Museum, the “House of Dynamite” director chats with an arms-control expert about duck and cover, radioactive ...

North Korea on Thursday displayed apparent progress in the construction of a nuclear-powered submarine, with state media photos showing a largely completed hull, as leader Kim Jong Un condemned rival ...

North Korea on Thursday released new images of what it claims is its first nuclear-powered submarine, a massive vessel equal in size to some of the United States Navy’s attack subs. The pictures ...

This is read by an automated voice. Please report any issues or inconsistencies here. SEOUL — North Korea on Thursday displayed apparent progress in the construction of a nuclear-powered submarine, ...

In this undated photo provided Thursday, Dec. 25, 2025, by the North Korean government, its leader Kim Jong Un inspects a nuclear-powered submarine under construction at an undisclosed location in ...