The Royal Navy’s Astute-class nuclear-powered attack submarines are a study in contrasts: technologically brilliant yet ...

Groups up to 72 people can stay onboard, hang out below the water line and sleep next to torpedoes. RELATED: See historical photos of WWII submarine and its voyage across Lake Michigan ...

A U.S. submarine prowled around a Jap-held island. ... Jap shore batteries opened up on it. ... he invented a brand-new rescue technique. With only the top of his periscope above water, ...

HD Hyundai Heavy Industries partnered with LIG Nex1 is selected as preferred bidder for KSS-II Mid-life Upgrade.

The deadliest attack submarines in the U.S. Navy thrive in the darkness of the ocean's depths, but every once in a while they need to rise to periscope depth so the crew can get a lay of the land ...