Society

Poland deploys cosmic particles to uncover secrets of Krakow’s Wawel Hill

Ramiz Salimov

16.10.2026, 15:32

Photo by Artur Widak/NurPhoto via Getty Images) — A detector installed in Wawel Hill, measures naturally occurring particles known as muons to identify potential cavities and underground structures. Photo by Artur Widak/NurPhoto via Getty Images

The same technique helped scientists discover a previously unknown void inside Egypt's Great Pyramid of Giza in 2017.