Subduction is the process of one tectonic plate sinking beneath another plate, forming a deep-sea trench. The Challenger Deep is intriguing because it lies near the oldest Pacific oceanic crust that ...

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 ...

The beer bottle at Challenger Deep serves as a potent reminder that ... of detailed mapping technology to fully understand the ocean floor. Using Geographic Information System (GIS) technology ...

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 ...