A French nuclear-powered attack submarine, the FS Tourville, surfaced in Halifax, Nova Scotia earlier this week, sparking baseless rumors it was in response to Donald Trump ’s annexation threats ...

The USS Nautilus was the world's first nuclear-powered submarine. It participated in scientific and military operations ...

U.S submarines receive long-range communications on very low and extremely low frequencies, but other methods can be used to ...

For example, the Nemo can plow through the water at only 3.5 mph to a depth of just 330 feet. This is a much more common speed for a personal submarine, as they're not typically designed to be ...

The escape trunk worked only if the submarine was submerged in 100 feet of water or less. "The average depth of the world's oceans is 2.3 miles, so the odds of you actually being in 100 feet of ...

State media released photos showing what it called “a nuclear-powered strategic guided missile submarine,” as it reported ...