Overview
- Filippo Biondi said on Jesse Michels’ American Alchemy podcast that four operators—Umbra, Capella Space, ICEYE and Italy’s Cosmo‑SkyMed—returned matching raw tomography for the Giza site.
- He attributed the results to synthetic aperture radar Doppler tomography, which he says reconstructs subsurface images from microscopic surface vibrations rather than ground‑penetrating signals.
- Biondi described eight hollow cylinders beneath the Khafre pyramid that purportedly drop more than 3,500 feet to cubic chambers about 260 feet across.
- The Italian team also claims smaller signatures under the Menkaure pyramid, a single large shaft beneath the Sphinx and similar spiral geometry at Hawara.
- Prominent Egyptologist Dr. Zahi Hawass and other experts reject the findings, arguing the technique cannot reliably image at the depths being claimed.