A recent deep-sea expedition into the Tonga Trench in the Pacific Ocean led to an astonishing discovery: a massive Pacific Sleeper Shark was filmed at an astounding 1,400 meters below the surface.

Deep beneath the ocean's surface, in the pitch-black abyss, scientists have uncovered a fascinating phenomenon: "dark oxygen.

Deep within the unexplored realms of our planet, researchers have recently uncovered a frightening new predator—a discovery ...

Sir John Ross lowers a line more than a mile into the North Atlantic and hauls up worms and a large sea star. Norwegians haul up from the deep a sea lily, a living fossil previously found only in ...

Nasa's Glenn Research Center has signed an agreement with a company that plans to build the world's deepest pool in Cornwall ...

In 1971, the Harbor Branch Oceanographic Institution in Fort Pierce, Florida built this nine-ton, 23-foot long acrylic and aluminum submersible for marine science research. Its applications ...

The world's largest invertebrate remained hidden from humanity until a tantalising glimpse 100 years ago. But it would be ...

Welcome to the abyss. The viperfish (pictured above ... squid and crustaceans. Many deep-sea creatures give out blue light called bioluminescence - but the stoplight loosejaw emits red light as well.