The Titanic-bound tourist submarine that disappeared on Sunday morning has only 70 hours of life support installed, US Coast Guard officials said as the search continues past its first day.

The material state of Russia’s brand new Yasen-M class submarine has been called into question after apparent missing tiles were spotted on the hull as it arrived in Havana. But here’s why it ...

The Navy's submarine community has announced a new historic first for women in the silent service: the first top enlisted sailor on a submarine. In a statement released Wednesday, the Navy ...

The submarine in question appeared to be 83 to 85 meters (272 to 279 feet) long, compared to the 77-meter-long Yuan class, according to Shugart's analysis.

After more than 100 years, we have the first actual image of the wreck of a sunken U.S. Navy submarine from World War I. A recent expedition to survey it and other lost military hardware has ...

A support vessel transfers crew and equipment to the Ohio-class ballistic missile submarine USS Alabama (SSBN 731) during an at-sea exchange of crew, held recently off the coast of Washington.

Members of the USS Barb's crew hold the submarine's battle flag aloft after returning from a final patrol in 1945. The train kill can be seen in the bottom-center of the flag.

The 311-foot submarine could reach speeds of up to 20.25 knots when surfaced and 9.75 knots when submerged. After steaming through the Panama Canal and spending some time at Pearl Harbor, the ...

WASHINGTON — The first submarine fully integrated for mixed gender crews will join the Navy fleet next week during a commissioning ceremony in its namesake state of New Jersey. The future USS ...