Could it be some mystery material mixed in with the molten outer core? One large secret surrounds the earth’s outer core, the material is 10% less dense than pure molten Iron should be at that temperature and pressure. The outer core layer is an impure mixture of liquid iron and other materials, while the inner core is nickel and iron under so much pressure that the melting point of the metals change and they are crystallized solid. We do know that the conditions of these layers are probably a little extreme for any subterranean explorers, heated to around 9,000✯ and under extremely high pressure, anywhere from 330 to 360 GaPa, or 40 million psi. Located 1,800 miles below the surface, we can’t study them directly. The inner and outer core are the innermost, and most mysterious, layers of the earth. The earth has four major layers: the crust, mantle, the inner and the outer cores.
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