Have you ever wondered how far man can dig? Or maybe you have wondered how far down the Earth’s mantle is. From 1958 to 1990 there have been multiple attempts to get to the Earth’s mantle, or the closest layer to the crust. With temperatures increasing upwards of 356 degrees and thick liquid like rock wreaking havoc on equipment, this is no easy task. On this episode of the Missing Chapter podcast, we describe attempts that man has made to get to the Earth's crust, and how successful they have been.