Muon-detecting sensors have revealed a huge hidden cavity hidden within the pyramid – the first major structural find since the 19th century

A 3D aerial view of the Great Pyramid of Giza, showing the chambers within, as well as the newly-detected cavity.
A 3D aerial view of the Great Pyramid of Giza, showing the chambers within, as well as the newly-detected cavity. Photograph: ScanPyramids mission