The world's oceans are big and dark and deep. They cover approximately 70% of the planet’s surface and contain a huge portion of Earth’s biodiversity. If you want to find some of the weirdest ...

A Chinese submersible has discovered thousands of worms and molluscs nearly 10 kilometres (six miles) below sea level in the Mariana Trench, the deepest colony of creatures ever observed, a study ...

Amazingly, these trenches lie at depths greater than the height of Mount Everest, Earth's tallest peak. The deepest one reaches 9,533 metres (31,276 feet) below the ocean surface in the ...

The Mariana Trench is the deepest point on Earth, void of light with the pressure of 48 jumbo jets. You'll still find crustaceans, translucent snailfish, and sea cucumbers in it. The most surprising ...

The deepest known point in any of the world’s oceans is Challenger Deep, a section of the Mariana Trench that plunges to ...

Imagine a place where the water is so deep that even Mount Everest, the tallest of mountains, could be swallowed whole, with its peak still submerged underwater. It might sound impossible, but there ...

The deepest part of any of the world’s oceans, known as Challenger Deep, is a portion of the Mariana Trench that goes down to ...

From the deep ocean floor to vast underground caverns beneath our feet, these places challenge our understanding of the world.