Journey to the Center of the Earth

Miners explore the deepest darkness.
They search the depths of the earth And dig for rocks in the darkness.

(Job 28:3) Good News Translation

The deepest hole ever drilled is the Kola Super-deep Bore-hole at 12 km. Less than 2% of the radius of the Earth. There are no direct observations of Earth’s interior, nothing empirical, it’s entirely theoretical.

All the mines on Earth, all the tunnels, caves and chasms, all the seas, and all of life exist within or on top of the thin shell of our planet’s rocky crust, which is much thinner, comparatively, than an eggshell. Earth’s immense, deep interior — the mantle and core — has never been directly explored, and probably never will be. Everything we know about the mantle, which begins about 15 miles below the surface, and about Earth’s core, 1,800 miles beneath us, has been gleaned remotely.

Journeys to the Center of the Earth – Discover July/August 2014

The hot core of the Earth is younger than the planet itself. That’s a problem in popular science (SciPop) but not in Matty’s Paradigm.


“Right at this moment, there is a problem with our understanding of Earth’s core,” says Stevenson, “and it’s something that’s emerged only over the last year or two. The problem is a serious one. We do not understand how the Earth’s magnetic field has lasted for billions of years. We know that the Earth has had a magnetic field for most of its history. We don’t know how the Earth did that. … We have less of an understanding now than we thought we had a decade ago of how the Earth’s core has operated throughout history.”

“Of course, the universe above the Earth is mostly transparent! So you have the wonderful opportunity to use photons to tell you about the rest of the universe,” he says. “But you can’t do that inside the Earth. So the methods we have for seeing inside the Earth, if you will, are actually quite limited.”

David Stevenson, California Institute of Technology

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