How deep can humans really go into the Earth’s crust, and what mysteries lie beneath? In this fascinating video, we explore the Kola Superdeep Borehole, the deepest man-made hole ever drilled into ...

Lake Huron has an average depth of 195 feet and a maximum depth of 750 feet, according to the U.S. Environmental Protection Agency. Lake Huron is about 183 miles wide and 206 miles long, the ...