Two American fast-attack submarines, armed with cruise missiles and torpedoes, visited Guam earlier this month.

The United States has never sold a nuclear-powered vessel to ... choosing a U.S. Navy attack submarine admiral to the post.... The Columbia-class will replace the U.S. Navy’s Cold War-era ...

The upgraded MK 48 Mod 7 torpedo variant will arm the U.S. Navy’s Columbia-class nuclear-powered ballistic missile submarines with a longer-range, more lethal, and more capable conventional weapon.

Oak Ridge's A.K. Bissell Park could become the home for a 120,000-pound sail from a decommissioned nuclear submarine, which officials say highlights the city's role as birthplace of the "Nuclear Navy.

The submarine’s propulsion system converts nuclear energy directly into electrical power, making the Columbia-class boats the quietest and stealthiest ever built. The USS District of Columbia ...

Salem-based Hunt Valve is starting the year with $96 million in purchase orders to provide ship service ball valves and forged high-pressure system valves to 12 new Virginia-class and five ...