In March 2025, two researchers stood at a press conference in Italy and announced a discovery: satellite radar, they said, had found a hidden complex beneath the Pyramid of Khafre at Giza — five identical structures around the pyramid's base, eight cylindrical shafts wrapped in spiral pathways, two cube-shaped chambers the size of city blocks, and a network of tunnels running two kilometers down. The claim was never published or peer-reviewed. It spread anyway, through the Daily Mail and the New York Post, and later onto the History Channel and the Joe Rogan podcast. Zahi Hawass, Egypt's former minister of antiquities, called the rumors nothing but fabrications, said the Supreme Council of Antiquities had granted no permit to work inside the Pyramid of Khafre, and said no radar equipment had been used inside it.
What the uproar mostly missed was that the same two researchers, Filippo Biondi and Corrado Malanga, had made a smaller version of the claim already — in a paper that had cleared peer review. Published in Remote Sensing on October 19, 2022, it reported that synthetic aperture radar had penetrated a different monument entirely, the Great Pyramid of Khufu, revealing a network of rooms, corridors, and tunnels inside. Malanga is an organic chemist at the University of Pisa; Biondi is a telecommunications engineer who was then a visiting professor at the University of Strathclyde. The paper carried an editor's approval and a DOI, and stood in the literature, cited seven times and uncorrected, for nearly four years.
The 2025 uproar changed that. A reader brought concerns about the 2022 paper's methods to the journal's editorial office; an investigation followed; and on August 10, 2026, Remote Sensing retracted it, citing what its editors called serious methodological flaws and statistical errors that undermined the article's conclusions. Lawrence Conyers, professor emeritus at the University of Denver and a specialist in ground-penetrating radar, explained why no fix to the statistics could have saved it. The satellite-borne kind cannot pass through solid stone, reflect off a chamber, and return an interpretable signal. To claim otherwise, he told Retraction Watch, is to ignore the fundamental laws of how electric and magnetic fields operate. The retraction notice records that Biondi and Malanga disagreed with it.
Conyers had seen the paper before. He was asked to review it ahead of publication, and told the editor he would not recommend it unless they found another reviewer who understood its many mathematical equations. It was published. None of the physics was newly discovered in 2026. It was as true in October 2022, when the article appeared, as on the day it was withdrawn. Peer review tests a claim once, through a handful of readers the authors have every incentive to satisfy, and whatever it concludes it concludes quietly. It has no mechanism for insisting later.
What finally caught the paper ran on a different mechanism: public, ongoing, and dependent on enough attention to make somebody ask. In 2022 the objection was raised and nothing carried it. In 2025, when the same authors said something far larger and louder, the attention arrived and found the objection waiting. Retraction is described as science correcting itself, as though it ran on its own clock. It runs on demand instead. Being wrong was never the risk here. Going unchecked was.