Yet another submarine has gone missing — and this time, it's not headed to visit the wreck of the Titanic in the middle of ...

It's an underwater chain of mountains 47,000 miles long. The chain runs down the middle of the Atlantic Ocean (surfacing at Iceland), around Africa, through the Indian Ocean, between Australia and ...

An underwater avalanche decimated a huge chunk of the East Atlantic seabed nearly 60,000 years ago, leaving behind an enormous trail of destruction. The avalanche started as a small seafloor slide ...

While Atlantis may not be real, there is actually a Lost City underwater – and it was ... known in the ocean and sits in the middle of the Atlantic, more than 2,300ft beneath the surface.

The search will involve a new fleet of underwater robots that can operate independently at depths of up to 6,000 metres for ...