Geologists in Egypt have reported the discovery of a tomb approximately 4,000 years old near the pyramids outside Cairo. For generations, researchers believed the major pyramids of the Old Kingdom had been fully explored. In 2023, work at the pyramid complex of Sahure at Abusir revealed previously undocumented chambers, prompting questions about what else might remain undiscovered at well-studied sites.
The site in question is Abusir, a pyramid field between Giza and Saqqara that receives fewer visitors than its more famous neighbors. Around 4,500 years ago, during the Fifth Dynasty, this plateau served as a royal burial ground. Four kings of that dynasty built pyramids there, including Sahure, who ruled for roughly twelve years between 2487 and 2475 BCE.
The pyramid of Sahure is modest in scale compared to the Great Pyramid, standing about 47 meters tall, roughly a third of the Great Pyramid’s height. Today it appears as a pile of rubble and collapsed casing stones. However, its surrounding complex was once richly decorated, with more than 10,000 square meters of relief carvings covering the temple and its causeway.
The pyramid was first explored in 1837 by British explorers John Perring and Howard Vyse, who forced their way inside. They found a damaged passage and a low corridor blocked by fallen rubble, stopped by fears of collapse but suspected other rooms existed. Between 1902 and 1908, German architect and Egyptologist Ludwig Borchardt conducted a comprehensive survey of the pyramid for the German Oriental Society. His published plans became the standard reference for over a century.
In spring 1994, workers cleaning near the upper end of Sahure’s causeway discovered four large limestone blocks carved with fine reliefs. Excavation that had been thought complete had missed something. The lesson was clear: the existing maps of the pyramid were good but not complete.
A joint Egyptian-German mission led by Mohamed Ismail Khaled of the University of Würzburg, with support from the American Research Center in Egypt, returned to the pyramid in 2019. The team’s goal was practical rather than exploratory: to prevent the pyramid from collapsing. Its deteriorating interior was unstable, with walls crumbling and debris blocking passages.
The team removed debris, supported ceilings with steel beams, and rebuilt damaged walls. They also conducted a modern laser scan using a portable lidar scanner with a team from the 3D Geoscan company, creating a precise digital model of the interior spaces. As rubble was cleared from an old blocked passage, something emerged: storage chambers that no modern researcher had documented.
The Egyptian Supreme Council of Antiquities announced the discovery in September 2023. The team described the find as the largest group of storage rooms ever found in an Old Kingdom pyramid, likely built to hold the king’s funerary equipment. They also uncovered the first confirmed fragments of the original burial chamber walls.
The discovery showed that Perring’s suspicions in 1837 had been correct, and Borchardt’s plans were incomplete. The missing rooms were hidden not by magic but by rubble and the quiet assumption that the work had already been finished.
An internet version of this story spread a more dramatic account. It claimed that a routine radar scan through a wall revealed a hidden chamber, that a camera lowered through a small opening showed rooms decorated with fresh-looking paint, and that an expedition director named Mohamed Assaf described the scene. None of these claims could be verified. No report from the Czech Institute of Egyptology, the University of Würzburg, or the Egyptian antiquities authority describes a decorated hidden chamber behind a wall in Sahure’s pyramid. No expedition director by that name appears in connection with the project.
The documented 2023 discovery is the set of eight storage chambers. The camera mentioned in the viral version may come from a different, real 2023 announcement. In March of that year, the Scan Pyramids project reported a hidden corridor above the entrance of the Great Pyramid, found through cosmic-ray imaging and examined by inserting an endoscopic camera through a narrow gap between stones. What the camera found was an empty, sealed passage about nine meters long and about two meters wide, with no paint or inscriptions.
The claims about a painted room deserve scrutiny because testing them teaches something about Egyptian art. The story relies heavily on the idea of remarkably fresh paint. Pigments do fade from sunlight, moisture, and visitors’ breath, and tombs begin to deteriorate once opened. Queen Nefertari’s tomb, discovered in 1904 by Italian archaeologist Ernesto Schiaparelli, showed how quickly this can happen. The Getty Conservation Institute worked for years in the 1980s and 1990s to save its paintings from salt damage. A sealed room that has never been exposed to air could indeed preserve color remarkably well.
The blue pigment described in the viral claim is real. Egyptian blue is not mined but manufactured by heating sand, a copper compound, lime, and an alkaline flux at about 900 degrees Celsius until a calcium copper silicate crystallizes. It is widely considered the first synthetic pigment in history, produced more than 5,000 years ago. In 2009, scientist Giovanni Verri, then at the British Museum, showed that Egyptian blue glows in infrared when visible light shines on it, a property invisible to the eye but visible to a modified camera.
The rest of the color palette in the viral claim, red ochre, yellow ochre, carbon black, and white gypsum, was standard for the Old Kingdom. Green colors typically came from ground malachite or a close relative of Egyptian blue.
The part that does not fit concerns binders. The story claims that X-ray fluorescence and Raman spectroscopy identified an egg-based binder, which would be unusual for Old Kingdom painting, where plant gums are the usual answer. X-ray fluorescence reads elements, not organic binders. Raman spectroscopy can identify many mineral pigments directly on a wall, but binders are a different challenge, usually determined with a small sample and laboratory methods such as infrared spectroscopy, chromatography, or protein analysis. An egg-based binder would be an exceptional claim requiring exceptional documentation.
According to the viral version, the walls contain three scenes. The first is a marsh hunting scene with boats gliding through papyrus thickets, fish drawn accurately enough for a modern biologist to identify species. Marsh hunting scenes do appear in tombs of nobles rather than kings, such as the famous mastaba of Ti at Saqqara, where Ti rides a papyrus boat and oversees a hippopotamus hunt. Kings, by contrast, decorated their temples with ships, gods, offerings, and foreign expeditions.
The second scene is a procession carrying offerings with unidentified objects raised on poles. Offering processions are a standard element of funerary art, so this part is familiar. The unidentified objects cannot be proven false because no images were published.
The third scene is the most dramatic. A portion is said to be covered by a later layer of plaster, and the figures adopt poses that do not match any known Fifth Dynasty ritual. This leads to the main argument: the great innovation of decorated royal burial chambers, the Pyramid Texts, appeared in the pyramid of Unas, the last king of the dynasty, about a century after Sahure. A painted room in Sahure’s pyramid would predate that by a century.
History offers a more complex picture. About two centuries before Sahure, the underground chambers of Djoser’s Step Pyramid at Saqqara, designed by the architect Imhotep around 2670 BCE, were lined with blue faience tiles and carved with royal inscriptions. Decoration inside royal burial places existed long before Unas. What Unas introduced was writing: spells carved on the walls, with hieroglyphs filled with blue and green pigment under a ceiling painted with stars.
Khaled and his colleagues suggest the storage rooms at Sahure’s pyramid held the king’s funerary equipment. Sahure may have been the only Old Kingdom ruler who saw his complex fully complete and furnished during his lifetime. His reign lasted just over a decade, yet his complex included a long causeway, a mortuary temple with palm-shaped granite columns, and a basalt floor.
The viral story suggests a different answer: a sealed statue chamber called a serdab. This idea has real roots. A serdab is a closed room containing a statue of the deceased with narrow openings so the spirit can see out. The oldest famous example stands beside Djoser’s Step Pyramid, where a seated statue of the king looks out through two small holes. It functions precisely because it is hidden. But no evidence links a serdab to the storerooms in Sahure’s pyramid.
The lesson from Abusir remains. A pyramid studied for nearly two centuries still contained undiscovered rooms. Newer tools are reaching further than ever. The Scan Pyramids project used cosmic-ray imaging to detect a large hidden void inside the Great Pyramid, published in Nature in 2017 without moving a single stone. The method works by counting muons, subatomic particles that fall from space and penetrate stone. Dense rock absorbs more of them, so a void appears as an unexpected surplus. The team used three different types of detectors built by separate groups in Japan and France so no single instrument could fool them.
The other pyramids at Abusir, including those of Neferefre, Nyuserre, and the unfinished pyramid of Neferefre, have been far less studied. No surveys of this type have been reported there yet, but they are exactly the kind of survey the site calls for.
For readers encountering future headlines about the pyramids, three questions are worth asking: Who exactly made the claim and what institution do they belong to? Where was it published, in a peer-reviewed journal, an official statement, or a popular post? And can anyone see the images, data, or samples? The real Abusir discovery passes all three tests. The painted room claim passes none so far.
