Thermal scans reveal interesting anomaly in Great Pyramid

Archaeologists believe that we’ve discovered most of what lies in the Valley of Kings in Egypt, but that doesn’t mean we’ve discovered everything. Even inside the Great Pyramid of Giza, outside of Cairo, researchers have found something interesting.

If you look at it, the size and orientation doesn’t seem to indicate a tunnel. Image credits: HIP INSTITUTE/PHILIPPE BOURSEILLER

After conducting thermal scans, researchers reported rather strange heat spots across the pyramids, especially a particularly large patch. Rocks (and all materials) hold heat differently to air, so this patch could signify some major cracks, a void, or perhaps even a passage under the pyramid.

Antiquities Minister Mamdouh El-Damaty said that especially one patch is interesting:

“There is something like a small passage in the ground that you can see, leading up to the pyramid’s ground, reaching an area with a different temperature,” said El-Damety. “What will be behind it?”


There are already some assumptions about what it could be, but there is really not enough information to be certain. A void or an entirely different construction material seem like the most plausible options. Realistically speaking, this is more likely to help us better understand how the pyramids were built, rather than finding a secret tunnel.

“At the very least, this anomaly will shed additional light on the construction techniques of the 4th dynasty Egyptians,” Egyptologist Beth Ann Judas said in an interview. “It’s rather exciting actually. Over the past few years, archaeologists have been learning more about the workmen and officials who are connected to the pyramids, and this gives us more information about their work.”

Thermal imaging is actually not a common technique used in archaeological imaging. Ground Penetrating Radar (GPR) and magnetometry are used more often in this context. GPR has already revealed some interesting potential cavities/voids, and it will be interesting to see if these correlate with the thermal scans.

This study, called Scan Pyramids will continue until the end of 2016, and thermal scanning is just the first step. They will also use infrared to survey the pyramids, and implement even more exotic techniques, such as using cosmic particles called radiographic muons and 3D reconstruction to try to map the secrets within the pyramids. If there’s something left to be found under the pyramid, they’ll find it… probably.

2 thoughts on “Thermal scans reveal interesting anomaly in Great Pyramid

  1. Keith R Mathews

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  2. Dr.K.SParthasarathy

    The absolute value of temperature at different points and differences in absolute terms will be interesting. The differences may very well be caused by the differences in natural radioactivity content of different rocks. This could be substantial! Geologists know that half of the energy which heats up the planet earth internally comes from radioactive decay of uranium, thorium and their decay products and potassium- 40

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