People had no idea about the depths of the world's oceans but this video depicts the same by comparing Earth's tallest ...

Situated in the enormous Pacific Ocean, the Challenger Deep is the lowest point on our planet. Found along the Mariana Trench, this natural phenomenon is an example of the astoundingly deep and ...

Ocean depth is divided into zones: littoral, bathyal ... so this figure is only an estimate. Challenger Deep, in the Mariana Trench, is the deepest point in the ocean known so far, at approximately 11 ...

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 ...