A US nuclear attack submarine has suffered damage after striking an unknown object in the South China Sea.
Scientists have been using Loch Ness to prepare several robotic submarines for deep-sea expeditions.
The ARA San Juan has finally been found twelve months after it went missing during a routine mission.
With its 60-ton cargo of mercury, the wreckage of U-864 is an environmental disaster waiting to happen.
Researchers have finally determined what caused the destruction of the HMAS AE1 back in 1914.
The wreckage of one of Germany's most advanced U-boats has been discovered off the coast of Denmark.
The crew of the HL Hunley, one of the world's first combat submarines, inexplicably died at their posts.
The wreckage of a cruiser sank by a Japanese submarine 70 years ago has finally been discovered.
The humorously named research submarine is preparing to venture beneath the waters of the Antarctic.
A German submarine said to have been attacked by a sea monster has been found off the coast of Scotland.
The new vessel, which does not require a human crew, is designed to scour the ocean for enemy submarines.
Hundreds of people took to social media to report a strange white light in the skies over California.
A secretive set of photographs has emerged showing two unidentified objects near a US Navy submarine.
A remote-controlled submarine has discovered that the ice is a lot thicker in some places than expected.
A two-man submersible was attacked by a pair of the invertebrates during an expedition in the Bering Sea.
A miniature submarine could one day be used to explore the depths of Europa's mysterious ocean.
Some scientists believe the anomaly could be a WWII weapon designed to thwart enemy submarines.
The movie director will descend seven miles under the ocean in a submarine that he helped design.
A new approach to submarine design could help to keep them hidden from detection by enemies.
The Pentagon is planning to develop a flying submarine than can travel at high speed in and out of the water.