Typically, when people think of submarine warfare, they probably recall the deadly U-boats of World War II. While that conflict saw widespread use of submarines, it was hardly the first to utilize the ...

A group of divers have explored the wreckage of a WW1-era Royal Navy submarine – 100 years after it sank. Dominic Robinson, 54, and a team of 10 dived 74m down to check out the century-old HMS M1 sub ...

A deep-sea training and engineering dive off the coast of San Diego provided an opportunity for never-before-seen imagery of the U.S. Navy submarine USS F-1, lost at sea in an accident on December 17, ...

In Dec. 1917, 19 sailors serving on a World War I-era U.S. submarine made the ultimate sacrifice during a training mission. Perhaps fittingly, scientists have captured never-before-seen photos of its ...

Submarines have been around since the 17th century, and while we know much about modern nuclear subs, the older boats are less well known. This is especially true of those used during World War I, as ...