The US Navy is developing a class of attack submarines that will serve into the 21st century. The US Navy’s SSN(X) attack ...

The 377-foot vessel can dive to depths of more than 800 feet below the surface and maneuver at speeds of over 25 knots.

"What we find is we learn a lot more when we get it in the crew's hands," Submarine Forces Commander Vice Adm. Gaucher said.

Today on CNN 10 we find out what a Supreme Court ruling means for rapid deportations in the US. Then we'll see ... We also learn who the Navy's newest nuclear submarine was designed to accommodate ...

The US Navy (USN) is facing delivery delays and cost concerns with its programmes to build nuclear-powered submarines and ...

US Navy Photo The Navy is counting on innovations to help it build and staff submarines and ships more efficiently as demand for the capability grows, the head of the service’s nuclear propulsio ...

The U.S. Navy has relied on submarines as an important part of its naval power since the invention of the Turtle, the first military sub, in 1775. Over the years, submarine technology improved ...

Sailors aboard the Virginia-class fast attack submarine Iowa man the rails during a commissioning ceremony in Groton, Connecticut, on Saturday. (John Narewski/U.S. Navy) The Navy formally ...

The US Navy wants to mix uncrewed underwater vehicles into its submarine forces. A commander said it's taking a "SpaceX approach" to testing, getting systems out quickly to see what works.