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 ...

This article originally published at Newest Connecticut waterfront add: submarine cradle two football fields long.

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

The U.S. Navy has added a powerful new nuclear attack submarine to its fleet, reviving the name of a storied World War II ...

Seasats, San Diego, a developer of long-endurance autonomous surface vessels (ASVs), has been selected to receive a $24 ...