We have visually explored less than 0.001 percent of the deep sea floor. To put that in perspective, 66 percent of the planet is deep ocean, and 99.999 percent of that ocean is unknown to us. Like ...

The ocean is still one of the biggest mysteries on Earth, and the deeper you go, the stranger it gets. Far below the surface, ...

Scientists have discovered a massive deep-sea coral reef system off the coast of Argentina that may be one of the largest on ...

Scientists have discovered a new species of isopod in the deep waters of the South China Sea — though its name has come from a galaxy far, far away. According to experts, the Bathynomus vaderi can ...

Glittery sea worms and sea squirts fit for "The Lord of the Rings" universe might sound like pure fantasy, but they're very real creatures living in the deep sea. Some of these otherworldly ocean ...

A brooding mother octopus shelters her eggs behind two different types of corals. The image was made by pilots using a robot to explore the north wall of the Mar Del Plata submarine canyon in ...

This video follows an incredible deep sea journey inside a submarine diving 500 meters below the ocean surface. Viewers will see what the underwater world looks like at this depth, how the submarine ...

Explore the darkest corners of the abyss with 18 terrifying creatures found at the bottom of the ocean. These are Earth's ...

Add Yahoo as a preferred source to see more of our stories on Google. Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, ...

A rare giant phantom jellyfish spotted off Argentina’s coast has become one of the most striking discoveries from a new deep‑sea expedition. The sighting occurred during an Argentinian‑led mission ...

With growing interest in mining critical metals from the seafloor, countries are now negotiating international rules. The Trump administration is forging ahead on its own, speeding up environmental ...