http://www.newsweek.com/how-cosmic-rays-space-reveal-secrets-pyramids-giza-muon-imaging-1688222

Researchers have used cosmic rays from deep space to create a powerful probe to investigate the hidden mysteries of the Great Pyramid of Giza.

The team, including Fermilab High Energy Physics (HEP) researcher, Alan D. Bross, will use the method, similar to a technique first adopted by Luiz Alvarez in the 1950s, to investigate mysterious voids in the pyramid.