Situated in the enormous Pacific Ocean, the Challenger Deep is the lowest point on our planet. Found along the Mariana Trench ...

These maps are critical for understanding heat ... Social media users expressed dismay at the beer bottle's presence in Challenger Deep. "F***** humans littering up our planet without regard ...

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 ...