In a remarkable discovery off the coast of Queensland, Australia, scientists have unveiled a massive underwater reef that rises 500 meters (about 1,600 feet) from the ocean floor. This towering ...

Measurements with the scanner confirmed that it is indeed the world’s largest underground thermal lake, revealing it to be ...

Swim through seagrass meadows, explore ancient history and observe dugongs among coral reefs — an awe-inspiring world beneath ...

A spate of sabotage attacks on underwater cables, allegedly perpetrated by a Russian "shadow fleet," have shown global ...