Using Cosmic Rays to See Inside the Great Pyramid

Published in the journal Nature Communications, scientists detail how they were able to confirm the presence of previously discovered chambers and tunnels but how they revealed the presence of a previously undiscovered corridor. Via SyFy

Muons have another characteristic which makes them useful for archaeologists and other scientists; they only interact with other matter very weakly, almost like a ghost trying to pick up a pen but only succeeding at nudging it. They can get through a pyramid or other stone structure without too much trouble, but they will get slowed down and some of them will get stopped before they make it through to the detectors on the other side. All of that means that if you put an object, like the Great Pyramid, between the sky and a muon detector, you can learn something about its insides from the amount of muons that make it through.

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