Google says it will string a trans-Atlantic cable from France to Virginia.
The UK's Archie O'Brien had a dream of zipping below the waters off Iceland or swimming with dolphins off the coast of Bora Bora.
Space treasure map leads to mysterious shipwreck site
When the 300-foot Maersk Launcher docked in San Diego early Monday morning, it unloaded a cargo of hardened black blobs scooped from the bottom of the sea.
Details have finally emerged surround a 2015 discovery of a 300-year-old Spanish galleon which went down after a battle with British ships off the coast of Cartagena, Columbia - considered the "holy grail of shipwrecks."
Billionaire-turned-explorer Paul Allen has discovered the missing wreck of the World War II carrier USS Lexington (CV-2) at the bottom of the Coral Sea.
A wave of pioneers is poised to scoop up treasure from the deep sea. But was this ocean mining boom sparked by a 1970s CIA plot? Mystery ship
Australian research group CSIRO (Commonwealth Scientific and Industrial Research Organisation) will be using aquatic drones to explore the Southern Ocean.
About 71% of the Earth is covered by the World Ocean for which the bottom topography (bathymetry) is far less known than the surfaces of Mercury, Venus, Mars, and several planets' moons, including our own.
According to multiple reports, the inventor of one of the world's largest DIY submarines is being held in Copenhagen on suspicion of "unlawful killing" charges after the sub sank off Denmark's coast, reportedly with a journalist inside.
China claims an all electric rim-driven pump-jet had been fitted to the People's Liberation Army Navy's newest nuclear submarines.
Scorkl enables you to breathe underwater for up to 10 minutes.
The submarine will be twice as long as a jumbo jet
Perhaps it is time to shift attention away from the "rally around the flag" diversion that is North Korea and pay some attention to China, which delighted by the ongoing geopolitical distractions is currently building the world's largest ..
Saying a company is "plumbing new depths" isn't usually a compliment, but it's high praise for U-Boat Worx.
No place on this planet is more inhospitable to human life than the deep oceans.
Eelume delivers intervention vehicles designed to live permanently under water. A cost saving and innovative technology for a greener and safer subsea future.
Canada's military is investigating a mysterious "pinging" that is emanating from the sea floor in the Arctic.
Looking at small scales in a big field
Some pretty out-there ideas have been put forward to protect swimmers from sharks lurking in busy coastal waters.