Norway's The Barents Observer newspaper said on Wednesday that three Yasen-class nuclear-powered boats of Russia's Northern ...

In early 1968, the Soviet nuclear ballistic missile submarine K-129 went abruptly missing near American waters off the coasts ...

Missing Titanic tour sub: Former Navy submarine captain on rescue options There are not many ships that can reach those depths, an ex Navy commander said.

Here's what we know about the search for the Titan submersible. The vessel went missing near the Titanic wreck location, with five people on-board.

WILMINGTON, N.C. (WTVD) -- As the search continues for that tourist submarine that vanished near the wreckage of the Titanic in the North Atlantic, a connection to the Tar Heel State has surfaced ...

The HMS M1 was constructed during WW1 but was never used in combat due to fears the Germans would copy its revolutionary design.

A Greek diver discovered the wreckage of the HMS Triumph in the Agaean Sea in 2023, with the hull showing that it had ...

A former Navy submarine commander explains the challenges that rescuers are up against in their search for the missing submersible near the Titanic.