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.

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The periscope has become one of the defining features of the submarine. But the newest US and British attack subs have totally reinvented how periscopes look and function. See more stories on ...

MUSKEGON, MI -- Sitting in the Muskegon Lake channel is an 82-year-old piece of World War II history. And you can sleep on it. The USS Silversides is one of the most successful submarines of World War ...

What You Need to Know: The Royal Navy’s Astute-class submarines are a testament to British engineering, offering exceptional stealth, endurance, and firepower. Some experts say they are the best ...