Tutankhamun's tomb: the Nefertiti theory, testable at last

Scientific American reports that a new review of archaeological and geophysical work at Tutankhamun's burial chamber, known as KV62, has renewed interest in a question researchers have argued over for more than a decade: whether anything lies beyond the decorated walls.

Some researchers have raised the possibility that concealed chambers, if they exist, could hold the burial place of Nefertiti, Tutankhamun's stepmother and mother-in-law. A painted bust of her head, found at Tell-el Amarna in 1912, is what made her famous.

Mamdouh Eldamaty, who led the review, told Nature the results were suggestive of concealed structures beyond KV62. The team's review included a survey carried out between 2023 and 2024. A decision on whether to drill carefully through the north wall and deploy miniature cameras could be made in the coming months. Scientific American reports that other experts are cautious about the findings.

Why anyone suspects a hidden chamber

The archaeologist Nicholas Reeves has pushed the idea for years, arguing that KV62 is only the outer part of a larger royal burial complex from the Amarna period, roughly 1350–1325 BC. He points to clues he believes may put Nefertiti's burial nearby, among them hieroglyphics on the north wall that were painted over.

The tomb's oddity is not in dispute. It is unusually small for one hosting a pharaoh, and the usual explanation is that a modest private tomb was adapted in haste because the king died young. Reports of possible seams in the painted north wall are what set the extended-complex theory going. Damaging the wall to test it would be out of the question, so the search has leaned on instruments that can see through stone.

Radar, gravity and an air gap

The first investigations used ground-penetrating radar at low frequencies, chiefly 400 to 900 megahertz. Lower frequencies reach deeper into the surrounding limestone than higher ones do, at the cost of a blurrier picture. Later work widened the range, going as high as 3 gigahertz, more than three times the top of the earlier band. Scientific American notes that it would have emphasized the highest-frequency antennas, because the first question is whether the north wall really holds a door seam.

Microgravity surveys came next. They record small shifts in gravity where the rock beneath is denser or less dense. Higher-frequency radar joined the toolkit as well. Scientific American calls this a sensible evolution of the research plan, with one practical snag: to protect the wall paintings, the radar antennas had to be kept a little away from the decorated surfaces. The resulting air gap weakened the link between antenna and wall and made the readings harder to interpret.

Microgravity has no such limit and can flag anomalies in the limestone below the sensor. But Scientific American reports that neither method has produced unambiguous evidence of a large open chamber just behind the wall.

What the evidence does not say

Supporters of the hidden chamber idea suggest any passageways may have been deliberately filled with rubble, which would hide the voids investigators expected to find. Scientific American calls that plausible and worth further testing, but an interpretation rather than a fact. Some investigators argue the geophysical evidence so far does not show hidden chambers at all.

A cautionary tale

Scientific American points to the search for Cleopatra's tomb at Taposiris Magna, where looted tombs, artifacts and a renewed look at a subterranean hydraulic tunnel were often presented as signs that a discovery was near. An aqueduct of a kind that fits Greek-influenced town building is not proof of a royal burial, the outlet argues.

As a contrast, it holds up Calliope Papakosta, a Greek archaeologist excavating in Alexandria. She showed Scientific American a marble statue of a young warrior that she argues may depict Alexander the Great. The carving's style matches the workshop of Lysippus, who was Alexander's sculptor at court. The statue had been thrown away in a Roman fill layer, so its original setting is gone. Papakosta kept her claims within what the evidence could support.

A testable hypothesis

The hidden chamber theory is intriguing and testable. It is not yet a discovery.

The proposal to drill a small borehole and send miniature cameras into one of the identified anomalies would take the question from inference to observation. Whatever the outcome, Scientific American reports that the investigations by Eldamaty and his colleagues amount to the most thorough scientific assessment anyone has made of the question.

Our view: the borehole is the right next step. A camera would settle in an afternoon what surveys have left ambiguous for years, and that decision, not another round of radar, is the thing to watch.

• archaeology
• KV62
• Mamdouh Eldamaty
• Nefertiti
• Nicholas Reeves
• Tutankhamun