The ocean has an average depth of approximately 3.7 kilometres (or 2.3 miles). A calculation from satellite measurements in 2010 put the average depth at 3,682 metres (12,080 feet). However, at the ...

In the summer of 2022, renowned oceanographer Dr. Dawn Wright embarked on a historic journey into Challenger Deep, the deepest known point in Earth's oceans. Located in the Mariana Trench, over 6.7 ...

The ocean floor is actually less well-mapped than ... was found at the bottom of the Marinara Trench, a place called Challenger Deep, which is over 10,000 metres down in the deep ocean, it's ...

He made the descent alone in a prototype submarine called “Deepsea Challenger ... so he can film the deep. This is only the second manned expedition to the ocean's deepest depths - the ...

Norwegians haul up from the deep a sea lily, a living fossil previously found only in rocks 120 million years old. British ship Challenger sails the globe while lowering dredges and other gear ...