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Does a video confirm a March 2025 discovery of vertical structures that are just shy of 2,000 feet in depth and roughly 1.24 miles underneath Giza Pyramids? No, that's not true: The clip cited a paper that was three years old. It did not make the specific assertions the video host made.

The claim appeared in a post (archived here) published on X on March 19, 2025 with this heading:

🚨Groundbreaking Findings on the Giza Pyramid Complex Could Re-Write Human History! This should not be possible.

At the 00:37, the narrator who appeared on camera in the shared video said:

... this is pretty much breaking news, because the new findings were announced on the 16th of March at a press conference held by the team who was studying the Great Pyramid of Giza with a noninvasive technology that was first developed by Filippo Biondi and Corado Malanga called synthetic aperture radar doppler tomography. So this was used to explore the internal structure of the Great Pyramid of Giza. And this method leverages the analysis of micro-movements typically generated by background seismic activity to achieve a high-resolution, full 3D tomographic imagery of the pyramid's interior and subsurface components. The recent findings from deploying this technology are nothing short of mind-blowing because what's been discovered is that there are huge structures down the base of the pyramid, deep into the bedrock, over 600-meter deep, which then connects to structures that extend up to two kilometers.

This is what the post looked like on X at the time of writing:

(Source: X screenshot taken on Fri Mar 21 17:12:00 2025 UTC)

The clip, however, showed a preprint version (archived here) of a paper published in 2022. A "preprint" is a preliminary, non-peer-reviewed article posted for discussion. The preprint discussed some structures said to have been previously unknown in the context of pyramids but did not say anything about them being 600 meters deep (just below 2,000 feet) or being extended "up to two kilometers" (1.24 miles).

In the March 21, 2025, video on YouTube, Flint Dibble (archived here), who is a Ph.D archeologist affiliated with Cardiff University in the U.K., made several points challenging the claim. He pointed out that the technology said to have been used to discover "huge structures down the base of the pyramid" is generally known for limitations in its reliability. Dibble said even the most modern versions of it can't penetrate the ground more than several meters below the surface. Dibble added that "the pyramids themselves are sitting on bedrock", not on soil or sand.

Lead Stories contacted experts on ancient Egypt and archaeology for additional comments. This story will be updated as appropriate if we receive a response.

Other Lead Stories fact checks concerning science are here.