Using subatomic particles to map the secrets of Mayan pyramids

Search for hidden chambers using cosmic-ray muons – Public lecture by Mark Adams · 44:14 · Video: Fermilab · Watch at the source

In short: How do you see through solid stone without breaking it? Scientists are using cosmic-ray muons—particles that penetrate deep underground—to scan the interior of Chichén Itzá's Kukulcan pyramid for hidden chambers.

In March 2022, Mark Adams and a multi-university team traveled to Mexico to begin mapping the pyramid's interior. Unlike x-rays, cosmic-ray muons can pass through dense objects, allowing researchers to "scan" the structure from the outside. The project requires precise coordination: the team first mapped known tunnels and spaces to determine where to place detectors for the most effective scan.

The initiative involves a diverse collaboration between institutions including Fermilab, Chicago State University, Dominican University, the University of Virginia, and the University of Mexico. It also highlights the QuarkNet program, which connects high school science teachers with cosmic-ray experiments.

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