The Italy-based Khafre SAR Project says analysis of radar data found an apparent anomaly beneath Khafre, interpreted as two roughly 80-by-80 m chambers about 600m down and linked by eight shafts. The complex has not been independently verified, and critics say the released renderings do not resolve known chambers. SAR Doppler tomography measures tiny ground motion through radar-wave Doppler shifts, not seismic waves, so the inferred depth and shape remain model-dependent. The 2022 Great Pyramid SAR study did report a void consistent with muon tomography. Reviews also flag a limestone-versus-granite error, transparency concerns and potential confusion from bedrock fissures and groundwater.
Italy-Based Team Claims Vast Structure Beneath Khafre; Evidence Unverified
EgyptRemote Sensing
Key facts
- The Italy-based Khafre SAR Project says analysis of synthetic-aperture-radar data found an apparent anomaly beneath Khafre; the claimed complex has not been independently verified.
- The project interprets the anomaly as two roughly 80-by-80 m chamber-like forms around 600m deep, linked by eight shafts. These details are claims, not established measurements.
- SAR Doppler tomography infers structures from tiny ground-surface movements measured through Doppler shifts in reflected radio waves. It is not a seismic-wave technique.
- Biondi et al.'s 2022 study of Khufu's Great Pyramid detected a large void that the authors reported was consistent with the earlier muon-tomography finding.
- Critics say the Khafre renderings do not resolve known chambers and question the methodology, transparency and processing of the raw data.
- The King's Chamber is in Khufu's Great Pyramid, not Khafre; it was cited as a comparison rather than as a chamber within Khafre.
- Khafre was built mainly from limestone, with granite used in some parts, so describing the pyramid simply as granite is inaccurate.
- Natural cavities and fissures in Giza's limestone bedrock are possible confounders, while structures at the claimed depth would be below the water table.
Sources
No credible evidence supports claims of vast underground ... - Snopessnopes.com
The researchers named in the recent claims, Corrado Malanga and Filippo Biondi, did publish a paper and book about their work using Synthetic ...
Researchers say they used SAR to find vast city beneath the pyramidsjpost.com
Italian and Scottish researchers claim they found a major discovery beneath the Pyramids of Giza, potentially rewriting the history of ancient Egypt.
What Really Lies Beneath the Pyramids? The Megastructures of Gizapapers.ssrn.com
The announcement on March 15/16, 2025 of the apparent detection beneath Giza's Second Pyramid, the pyramid of Khafre, of a whole series of ...
Scientists rubbish claims of 'giant structures' underneath Egyptian ...factcheck.afp.com
"There is no scientific evidence to support these assertions, and no archaeological missions are currently working inside the Pyramid of Khafre.
No discoveries were made beneath Pyramid of Khafre: Zahi Hawassenglish.ahram.org.eg
"This is false,” Hawass said, noting that those spreading the rumours were amateurs who had used unapproved, unvalidated techniques. “The ...
(PDF) What Really Lies Beneath the Pyramids?researchgate.net
March 2025 saw the announcement from the Khafre SAR Project of the apparent detection of a huge megastructure beneath Giza's Second Pyramid. The ...
Synthetic Aperture Radar Doppler Tomography Reveals ...mdpi.com
by F Biondi · 2022 · Cited by 31 — Microgravity surveys of the Khnum-Khufu pyramid have been conducted, considering also the general structure of the pyramid.
ScanPyramidsen.wikipedia.org
This project aims at scanning Old Kingdom Egyptian Pyramids (Khufu, Khafre, the Bent and the Red) to detect the presence of unknown internal voids and ...
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