The Columbia-class submarine outstrips its predecessor, the Ohio class, in many ways—but falls short in one conspicuous one.

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 ...

The Columbia class is slated to enter service in 2031—with very little room for error, as its predecessor, the Ohio-class SSBN, will be retired starting in 2017. General Dynamics Electric Boat, a ...

To find replacement parts when something fails unexpectedly, the Navy has sometimes had to "cannibalize" other submarines.

The U.S. Navy’s newest stealth submarine isn’t just quieter, it’s smarter. The USS Massachusetts (SSN-798), part of the Virginia-class Block V line, completed trials this year and represents a major ...

The keel was laid this week for the future USS Barb, the 31st Virginia-class nuclear-powered attack submarine, as the Navy continues to transition away from dependence on the Cold War-era Los ...