Joe Rogan Experience #2560 - David Grusch · Aired Sep 30, 2026
Claim summary · not a verbatim quotation
Satellite radio tomography shows a structure underneath the pyramids at Giza that extends over a kilometer into the ground.
The finding
What the evidence shows
Filippo Biondi and Corrado Malanga did claim in 2025 that their radar method found shafts and chambers reaching deep under the Khafre pyramid. Nobody has shown that those structures exist. The claims were never peer reviewed, radar experts including Lawrence Conyers and Sarah Parcak say satellite radar cannot see through rock to anything like that depth, and in August 2026 Remote Sensing retracted the pair's earlier pyramid radar paper over methodological flaws.
Read the supporting source · www.nationalgeographic.com ↗Quick answer & review status
Quick answer
Is it true that Satellite radio tomography shows a structure underneath the pyramids at Giza that extends over a kilometer into the ground?
Partly. The claim stretches what the evidence shows. Filippo Biondi and Corrado Malanga did claim in 2025 that their radar method found shafts and chambers reaching deep under the Khafre pyramid. Nobody has shown that those structures exist. It was said on Joe Rogan Experience #2560 - David Grusch, aired Sep 30, 2026, at 1:28:18. We haven't independently confirmed who said it. The supporting source is nationalgeographic.com, linked below.
The context belongs here.
No separately verified on-air correction is recorded for this check. That is not a claim that nobody corrected it.
- Attribution
- Not independently confirmed in this record
- Editorial context review
- Not recorded; generated finding
- Coverage
- One selected claim from the episode
Revisions to this check
No dated revision is recorded here. Older checks may predate this log.
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