Why is the Marianas Trench the deepest place on Planet Earth? A look beneath the ocean

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The Challenger Deep of the Marianas Trench is the deepest point in any of Earth's oceans at 35,876 feet below sea level. Specific details of plate tectonic interactions create this impressive depth. This video uses Google Earth and simple diagrams and illustrations to explain the interacting forces and processes that form the deep Marianas Trench and impact other aspects of the Earth, like global climate. The video refers to some publicly available geologic studies that describe the evolution of the area and shed light on just what happens deep inside the Earth that controls what happens at its surface.