Scientists have made a groundbreaking discovery in the deepest place on Earth. In the Mariana Trench, they encountered ...

From the top of the world to the bottom...the Mariana Trench is the deepest part of the ocean. It's an enormous scar that tears across the floor of the western Pacific Ocean for 1,580 miles.

Following is a transcript of the video. Narrator: The Mariana Trench is the deepest point on Earth. So deep that if you dropped Mount Everest inside, its peak would still be more than a kilometer ...

Since the 1960s, multiple missions—some autonomous, others manned—have sought to explore the deepest part of the Pacific Ocean, the Mariana Trench. Over 30,000 feet ... allowing them to reconstruct a ...