A mysterious phenomenon first observed in 2013 aboard a vessel in a remote part of the Pacific Ocean appeared so preposterous, it convinced ocean scientist Andrew Sweetman that his monitoring ...

Researchers scouring the lightless landscape of the Pacific Ocean floor think they've observed "dark oxygen" being created there, potentially challenging commonly held beliefs about how oxygen is ...

A startling discovery made public in July that metallic rocks were apparently producing oxygen on the Pacific Ocean’s seabed, where no light can penetrate, was a scientific bombshell. Initial research ...

Scientists have discovered oxygen is being produced extremely deep below the ocean's surface, changing how we think about life at the bottom of the sea. Researchers discovered the presence of strange ...

A bizarre new discovery in the deep Pacific Ocean has scientists scratching their heads, and for good reason. Far beneath the ocean’s surface, in a region where sunlight never reaches, oxygen is being ...

A mysterious phenomenon first observed in 2013 aboard a vessel in a remote part of the Pacific Ocean appeared so preposterous, it convinced ocean scientist Andrew Sweetman that his monitoring ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. “I basically told ...

Photosynthetic organisms such as plants, plankton and algae use sunlight to produce oxygen that cycles into the ocean depths, but previous studies conducted in the deep sea have shown that oxygen is ...