This is genuinely checkable 2025 news, with a decisive correction the original coverage underplayed. The site is the Pyramid of Khafre at Giza, not “Hebron.” Egypt’s own former antiquities minister, Zahi Hawass, publicly called the claim “fake news,” stating the researchers never conducted fieldwork in Egypt. A radar expert directly confirmed the claimed scanning depth is technically impossible with the equipment used.
In March 2025, a team of Italian researchers announced a striking claim about the Giza Plateau, one that generated substantial global media attention alongside immediate, credentialed scientific pushback.
The Actual Site and Date
The site in question is the Pyramid of Khafre, the second-largest pyramid at Giza, not “Hebron,” a city in the West Bank located nowhere near Egypt, an apparent mistranslation error. The claims were also first announced on March 15, 2025, with formal press conferences March 22 and 23, not February 2025 as sometimes reported.

Who Actually Made This Claim
The research team consisted of Filippo Biondi of the University of Strathclyde, Corrado Malanga of the University of Pisa, and Armando Mei. Their self-titled “Khafre Project” used Synthetic Aperture Radar analysis of satellite data to claim a vast underground network extending roughly two kilometers beneath the pyramid.
Worth knowing directly: Corrado Malanga has a documented public history of promoting fringe theories involving alien abduction and New Age claims, a relevant factor when weighing his team’s scientific credibility here. Biondi and Malanga did publish an earlier, peer-reviewed paper in the journal Remote Sensing in October 2022, describing more modest potential structures inside the pyramid, a different and far more limited claim than the March 2025 “underground city” announcement, which has never been peer-reviewed or published in any scientific journal.
The Pushback Was More Direct Than “Mainstream Skepticism”
The pushback here was considerably more direct and decisive than “official archaeologists dismiss these claims as symbolic mythology” suggests. Dr. Zahi Hawass, Egypt’s former minister of antiquities and one of the field’s most prominent authorities, publicly and directly labeled the research “fake news,” stating on his verified public page that the researchers “have never come to Egypt to do research” and that their techniques are “neither scientifically approved nor validated by the archaeological community and radar experts.

Ground-penetrating radar specialist Professor Lawrence Conyers of the University of Denver directly addressed the technical claim itself, stating it isn’t physically possible for the radar technology used to penetrate to the claimed depth, and calling the underground-city interpretation “a huge exaggeration.” He allowed that smaller, shallower structures like shafts or chambers could plausibly exist, a considerably more measured position than the viral “vast lost city” framing.
A Separate, Unrelated Context | The Younger Dryas Impact Hypothesis
Dr. James Kennett is a geologist at UC Santa Barbara and a genuine proponent of the Younger Dryas impact hypothesis, a published, though genuinely still-debated hypothesis within mainstream paleoclimatology proposing a cosmic impact event contributed to abrupt climate change roughly 12,800 years ago. This is legitimate, if contested, science, entirely separate and unrelated to the Khafre Project’s underground-city claim discussed above, which Kennett hasn’t endorsed or connected to his own research.
Alternative Historians, Accurately Characterized
Graham Hancock and Andrew Collins are genuine authors and researchers who have long published alternative interpretations of ancient history outside academic archaeology. Their published theories, including the Edfu Temple hieroglyph interpretations sometimes cited here, are worth presenting accurately as their own personal interpretive framework, not as established archaeological consensus, since Egyptologists who study these same texts generally read them as symbolic religious literature about the arrival of Egyptian deities, not literal historical record of a lost civilization.
Göbekli Tepe and Karahan Tepe are genuine, extensively studied archaeological sites in Turkey, their remarkable early date well confirmed, but archaeologists studying these sites attribute their construction to sophisticated but ultimately human Neolithic hunter-gatherer societies, not evidence of a lost advanced global civilization.
How Synthetic Aperture Radar Actually Works
Understanding what Synthetic Aperture Radar technology actually does directly clarifies the dispute here. SAR is a legitimate remote sensing technique that satellites use to create detailed images by sending radar pulses toward the ground and analyzing the reflected signals, widely and successfully used for monitoring ground subsidence, tracking glacier movement, and detecting subtle surface deformation from earthquakes. Geophysicists confirm SAR genuinely can detect very small surface movements, sometimes just millimeters, but its penetration into solid rock and soil is fundamentally limited by the physics of radar wave attenuation, the signal weakens substantially the deeper it needs to travel through dense material. This is precisely the technical basis for Professor Conyers’s specific criticism: the claimed two-kilometer penetration depth through solid limestone bedrock exceeds what radar physics considers achievable with this technology, regardless of how the resulting data is processed or interpreted afterward.

Why the Full Story Matters
The story here is genuinely interesting on its own terms: a radar researcher’s disputed claim, a direct and decisive public rejection from Egypt’s own former antiquities minister, and technical criticism from an independent radar specialist. That complete, still-unresolved scientific dispute, unpublished, unreviewed, and directly challenged by named experts on both the archaeological and technical sides, is worth knowing accurately, rather than through a framing that undersells just how directly and specifically this claim has already been challenged.