NPR The Two-Way: Scientists Say They’ve Found Hidden Space In Great Pyramid Of Giza.

“Tayoubi explains that his team installed sheets of muon-detecting film in a lower-level room of the pyramid known as the Queen’s Chamber. The goal was to test whether they could use muons to accurately discern two well-known rooms located above: the King’s Chamber and Grand Gallery.

They saw those rooms but, to their surprise, they found an additional large space as well.”

Deutsche Welle: Hohlraum in Cheops-Pyramide entdeckt. “Seit zwei Jahren durchleuchten internationale Forscherteams mit Strahlungsdetektoren die Cheops-Pyramide. Jetzt feierten sie den Durchbruch: Sie entdeckten einen riesigen Hohlraum in der größten Pyramide in Gizeh.”