How scientists are using cosmic radiation to peek inside the pyramids – BBC Science Focus Magazine

Muon tomography is a little like space exploration in reverse. Instead of using instruments constructed on Earth to investigate space, it relies on cosmic rays produced in space to delve into things on Earth.
— Read on www.sciencefocus.com/future-technology/how-scientists-are-using-cosmic-radiation-to-peek-inside-the-pyramids/amp/