The Yasen-M class nuclear submarines Severodvinsk, Kazan, Novosibirsk and Krasnoyarsk are already operational in the Russian ...

The oceans hide mobile, invisible, and lethal fortresses: the largest submarines ... meters in length, weighs over 48,000 tons submerged, and can carry up to 20 intercontinental nuclear missiles.

The vessel’s trawl net had snagged something far larger than any fish – a nuclear submarine ... vessel measuring 115 meters (377 feet) in length and displacing 7,800 tonnes.

Satellite imagery spotted a Chinese submarine with its nuclear ballistic missile hatches open while pier-side at a naval base with underground facilities facing the contested South China Sea.

As the Royal Navy moves to a single class of nuclear-powered attack submarines ... that spanned across almost the whole length between the sail and the submarine’s tail, HMS Triumph’s long ...

At the time the longest solo deployment by a Royal Navy nuclear-powered submarine. She then went on to serve in Afghanistan in 2001, launching Tomahawk missiles at targets. HMS Triumph was later ...