A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.)

Nov 21, 2025 · A submarine is any naval vessel that is capable of propelling itself beneath the water as well as on the water’s surface. This is a unique capability among warships, and …

2 days ago · With fifth-generation submarines on the horizon, their technology has come a long way. Ultra-advanced subs of today use nuclear power and beyond.

Apr 24, 2025 · Today’s submarine force is the most capable force in the world and the history of the U.S. Navy. The composition of the current force consists of Los Angeles, Ohio, Seawolf, …

Jul 22, 2025 · A submarine is a specialized watercraft designed for underwater operations. Unlike surface ships, submarines can submerge and navigate beneath the water’s surface, making …

1 day ago · Navy Partners With Palantir for $448 Million AI Submarine Shipbuilding Deal Sailors participate in the installation of a catapult aboard the Nimitz-class aircraft carrier USS John C. …

In 1920 the U.S. Navy Department established a standard Type and Class letter designation system. "SS" was established as the two-letter class designation for Submarine (first line). In …

Dec 4, 2025 · Taipei’s first domestically built attack boat held its latest sea trials last month amid news of significant delays that have postponed Taiwan’s ambitious submarine program. Hai …

Comprehensive coverage of submarine technologies, submarines design, and operational use in military and scientific contexts.

The greatest advance in submarine technology occurred on Jan. 21, 1954, with the launch of the USS Nautilus, the first nuclear-powered vessel. Nuclear power enabled submersible vessels to …