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

A Seoul-based company has expressed its intention to build nuclear-powered submarines for the U.S. Navy. Hanwha Group claims that its Philadelphia plant could support construction of advanced ...

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 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 ...

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 ...

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

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 ...

There was relief in naval circles on three continents recently when President Donald Trump insisted the U.S. is moving “full steam ahead” on the AUKUS security agreement that sends state-of-the-art ...