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'Hidden Structures' Beneath Egypt's Pyramids Detected by Scientists

Italian researchers using radar tomography report eight massive hollow cylinders under the Khafre pyramid extending over 3,280 feet deep, despite skepticism from Egyptologists.

  • Filippo Biondi, radar engineer, presented what he calls convincing evidence of an underground network linking chambers nearly 3,500 feet beneath the Giza Plateau, Egypt.
  • Using synthetic aperture radar Doppler tomography, Filippo Biondi's team analysed microscopic surface vibrations, contending they carry acoustic fingerprints that enable software to reconstruct 3D images without penetrating soil.
  • Four satellite operators—Umbra, Capella Space, ICEYE, and Cosmo-SkyMed—produced matching raw tomography data showing eight hollow cylinders beneath the Khafre pyramid, with depths over 3,280 feet.
  • Mainstream experts rejected the claims as fake news, including Dr. Zahi Hawass, while the Italian research team acknowledges the need for fundamental scientific validation before announcing results.
  • Mr Biondi argues the pyramids are a capstone to a larger system with smaller spiral-shaft signatures under Menkaure, a large shaft beneath the Sphinx, and matching geometry 30 miles away at Hawara.
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Daily Mirror broke the news in London, United Kingdom on Tuesday, December 9, 2025.
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