The precise composition of ancient Egyptian paints, binders, adhesives, and similar materials used to make artifacts is largely unknown, in part because a full analysis would require taking samples that would damage those valuable artifacts. The development of cutting-edge, non-destructive techniques has been helping to unlock those secrets, aiding conservation efforts.

Most recently, researchers have used mass spectrometry-based proteomics to analyze the glues and adhesives in a broad set of Egyptian artifacts, according to a new paper published in the journal Science Advances. They found plenty of expected sources, such as animal collagens and egg proteins, but also plant proteins, specifically from sesame and drumstick tree (moringa) cereals.

As previously reported, the ancient Egyptians had a highly formalized (and easily recognizable) painting style, and there has been considerable interest in gaining insights into the specific pigments and painting techniques employed. Common pigments included hematite and realgar for red; goethite and orpiment for yellow; Egyptian blue; Egyptian green; carbon-based black; and calcite, gypsum, anhydrite, and huntite for white. (Just last year, Washington State University researchers were able to re-create Egyptian blue by mixing together silicon dioxide, copper, calcium, and sodium carbonate in varying proportions and heating them at very high temperatures akin to those of ancient kilns.)

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An important Egyptian tomb from the Fifth Dynasty of the Old Kingdom has been discovered in the Saqqara necropolis by a Spanish-Egyptian archaeological mission.

Josep Cervelló, an Egyptology professor at the Autonomous University of Barcelona, led the work, which was coordinated with the Egyptian Supreme Council of Antiquities to investigate the unique tomb in the Saqqara region southwest of Cairo.

The tomb did not belong to a Pharaoh, but was commissioned by a high-ranking official named Yunmen, who served during the reign of Djedkare Isesi. Strangely, the structure features two funerary chapels: one of which is dedicated to the Iti, Yunmen’s father, who held a lower rank than his son.

The discovery may offer a new context for the intersection of spirituality and social mobility in ancient Egypt.

Egyptian Tombs

We now see the Saqqara necropolis primarily as the remains of a dead culture, filled with long-forgotten tombs. While often portrayed as settings for horror stories, the Spanish-Egyptian archeological team viewed them differently, seeing them as places used by a vibrant community, where the living constantly came to leave offerings and work on funerary monuments.

The recent work is part of the continuing exploration of Egyptian sites discovered by archaeologists in the 19th century. To this day, archaeologists continue to seize on hints in the works of their forebears over a century ago to explore ancient Egypt’s impressive remains. Auguste Mariette, a French archaeologist, first discovered the site, identified as containing a large tomb complex, but no detailed exploration or documentation had been done.

Life In the Necropolis 

Egyptian mastabas were a unique style of tomb, and in some ways were like modern cemeteries: they were frequently visited places where the lost were mourned and remembered. For this reason, the team was also very interested in the tomb complex’s topography, rather than just its beautiful decoration. They studied the tomb as an urban location, investigating how ancient people moved through it and whether they worshipped outdoors or inside.

Exploring the bustle of urban life in the necropolis netted the team their first indication of Yunmen’s tomb, alongside hints at two more located nearby. In follow-up excavations, the archaeologists are planning to explore the remaining pair.

Moving in Ancient Egyptian Society

The tomb’s physical structure intrigues archaeologists, as it is a rare example of a building with two funerary chapels. Fortunately, the 4,400-year-old tomb is remarkably well preserved, with vibrant color and fine details observable in the wall reliefs. Archaeologists can still clearly make out tiny donkeys and other animals in the wall art. Elsewhere, some elements of the texts adorning the walls follow common formulas—yet even these are customized to the official role and personality of the owners.

Archaeologists interpreting the mastaba believe it reflects social advancement. Yunmen achieved a higher social status than his father, Iti. Yet on the journey to the afterlife, Iti was not forgotten; Yunmen ensured his father received a tomb of similar opulence, so the son’s prestige would apply retroactively to the father in death.

“We still need to fully examine it, but one possibility is that the official originally came from that outlying province, arrived at the court, and settled in Memphis—Egypt’s capital at the time—while his son became an official in the central state administration and was the one who built the tomb,” Cervelló said in a press release.

It remains to be seen what the other two mastabas identified by the team will reveal, whether they will provide more evidence for our traditional understanding of Egyptian culture or add more nuance to our view of these ancient people.

Ryan Whalen covers science and technology for The Debrief. He holds an MA in History and a Master of Library and Information Science with a certificate in Data Science. He can be contacted at ryan@thedebrief.org, and follow him on Twitter @mdntwvlf.

When the French Egyptologist Auguste Mariette surveyed the necropolis at Saqqara in the mid-19th century, he catalogued hundreds of mastaba tombs and marked one more on his map that he never got around to excavating. It stayed there, noted but untouched, for more than 160 years. A joint Spanish-Egyptian mission has now finished what Mariette […]

Protein traces reveal practical workshop recipes and a connection to the god Ptah.

More than 4,000 years ago, an Egyptian official named Sekhentiu-Ptah held a collection of titles that placed him remarkably close to royal power. He oversaw the king’s works and documents, supervised scribes, and even served as the “Keeper of the Secrets of Royal Commands.”

Now, archaeologists have found his tomb. An Egyptian archaeological mission excavating the Saqqara necropolis in Giza has uncovered the Old Kingdom tomb of Sekhentiu-Ptah, including its funerary chapel, an intact false door, and a complete collection of alabaster ritual objects still positioned where they were left thousands of years ago.

Nearby, researchers discovered an interconnected network of burial shafts containing human remains, more than 100 funerary figurines, and three stone sarcophagi that were still sealed when archaeologists found them.

Speaking with The Jerusalem Post, Mohamed Abdel-Badie, head of Egypt’s Antiquities Sector, said finding a complete set of funerary objects still in their original position was “an important discovery, offering valuable information about funerary rituals and practices during the Old Kingdom.”

The discovery was made during the Egyptian mission’s first excavation season in Sector A, west of the Bubasteion at Saqqara, roughly 20 miles south of Cairo. Saqqara served as a major burial ground for ancient Memphis and contains monuments and tombs spanning thousands of years of Egyptian history.

Sekhentiu-Ptah’s tomb dates to the Old Kingdom, the era roughly spanning the third millennium BCE that witnessed the construction of Egypt’s great pyramids.

Inside the remains of his funerary chapel, archaeologists encountered a false door still standing in its original location. Such doors were symbolic thresholds associated with the deceased and the offerings made to sustain them in the afterlife.

Directly in front of the false door was a complete group of alabaster ritual objects that had apparently remained together in their archaeological context. The assemblage includes an offering table and offering disk, purification basin, jug, and another basin.

Hieroglyphic inscriptions on the false door and funerary objects revealed not only Sekhentiu-Ptah’s name but an extraordinary résumé.

He was identified as Royal Chamberlain, Overseer of All the King’s Works, Overseer of Royal Documents, Keeper of the Secrets of Royal Commands, Priest of the goddess Maat, and Overseer of the Scribes. Together, the titles indicate that Sekhentiu-Ptah occupied a prominent position within Egypt’s royal administration.

Archaeologists also uncovered a system of interconnected burial shafts filled with human burials and large quantities of painted funerary cartonnage, a material commonly made from layers of linen or papyrus and plaster and used in funerary coverings.

Archaeologists recovered more than 100 faience ushabti figurines. These small figures were placed in Egyptian tombs to perform work for the deceased in the afterlife symbolically. Archaeologists also found a wooden falcon statue, pottery, and three stone sarcophagi that were kept sealed in their original condition.

The collection is particularly interesting because it captures different chapters in Saqqara’s history. While Sekhentiu-Ptah’s tomb belongs to the Old Kingdom, material from the surrounding shafts provides evidence for funerary practices during the much later Late Period. In essence, the site became a cemetery layered on top of a cemetery, repeatedly returned to and repurposed across Egyptian history.

Not everything survived undisturbed. Archaeologists found openings cut between some burial chambers, evidence that ancient tomb robbers had already penetrated portions of the complex. Even so, enough remained intact to allow researchers to reconstruct how the necropolis changed over time.

The surviving artifacts retain “great archaeological and scientific value, contributing to understanding the site’s internal layout and the development of its architecture through its successive historical phases,” excavation director Dr. Amr El-Tayebi explained.

For now, the discovery is a work in progress. The Egyptian team is continuing to document and compare the artifacts with material recovered elsewhere in Egypt, with plans to publish the results in peer-reviewed scientific journals. Archaeologists also believe Sector A could contain additional structures and artifacts still waiting beneath the sands of Saqqara.

Tim McMillan is a retired law enforcement executive, investigative reporter and co-founder of The Debrief. His writing typically focuses on defense, national security, the Intelligence Community and topics related to psychology. You can follow Tim on Twitter: @LtTimMcMillan.  Tim can be reached by email: tim@thedebrief.org or through encrypted email: LtTimMcMillan@protonmail.com 

Researchers from the multi-organizational Egyptian archaeological mission working at Tell Abu Saifi in Qantara East, Ismailia, have unearthed numerous architectural elements and artifacts, including a previously undiscovered inscription, that the  country’s Ministry of Tourism and Antiquities suggests may link the site to the lost ancient Egyptian city of “Msen.”

“A new archaeological discovery in Tel Abu Saify in Qantara East redefines the map of the ancient Hors Wara road… and strengthens the hypothesis of locating the lost ancient Egyptian city of ‘Msen’,” explained a Facebook post from the country’s Ministry of Tourism and Antiquities.

The team behind the discoveries from the current excavation season said their findings also shed new light on the ancient Horus Military Road and may offer previously unavailable insights into the site’s architectural, religious, and military development throughout history.

Inscription Links Site to Lost Ancient Egyptian City of Msen

According to the Ministry’s post, new excavations revealed a massive mudbrick enclosure wall that had not yet been fully excavated. The full excavation included the enclosure’s gateways, interior rooms, and construction layers from different time periods.

A further analysis determined that the structure was an outer enclosure surrounding an ancient temple. The researchers said this new interpretation contradicts previous interpretations of portions of the ancient site.

Hisham El-Leithy, Secretary-General of the Supreme Council of Antiquities, said the research team also found intriguing evidence connecting the ancient site with the city of Msen. The most striking connection came from a huge sandstone lintel found broken into two pieces. Along with several references to Pharaoh Ramses II, the stone lintel contained a section of text recording ancient repairs to a statue of Horus, Lord of the City of Msen.

“Dr. Hisham Hussein, head of the Central Administration for the Coast and Sinai and head of the mission, confirmed that the most important findings were a huge upper crust of sandstone broken into two parts, and three-sided carvings of the titles of King Ramses II on three sides, as well as a literary text indicating the restoration work carried out on the statue of the deity “Horus, the lord of the city of Masna,” which is of great importance in studying the identity of the site,” the Facebook post explained.

Other ancient Egyptian texts name an ancient eastern border settlement during the New Kingdom with that name. However, archaeologists have yet to discover its precise location. The researchers said mention of the god Horus supports earlier evidence from the same site linking Tell Abu Saifi to the lost Egyptian city. Still, they caution, research still underway is expected to shed more light on the potential connection. 

Additional Findings Include Ancient Roads and Military Items

Along with the main structures, Mohamed Abdel Badie, Head of the Egyptian Antiquities Sector at the Supreme Council of Antiquities, said the excavations revealed a pair of successive stone roads leading from the fortified structure’s exterior into the central temple. The first road was dated to the Ptolemaic period. The newer, narrower road built on top of the older road was attributed to the Roman era.

Hisham Hussein, Head of the Central Administration for Lower Egypt and Sinai and head of the archaeological mission, said the work identified the remains of a second temple with several storage rooms on one side and larger “service” rooms on the other, leading toward the central sanctuary.

Mahmoud Galal, Director General of Sinai Antiquities and Director of the mission, said the team found items of military and administrative significance at the ancient Egyptian site. One noteworthy discovery was described as a 26^th Dynasty “schist” statue depicting an army scribe carrying a broken naos. The researchers said this discovery highlights the site’s strategic and military character.

Other items of interest included a Late Period statue missing its head and feet, a royal basalt statue torso, and small fragments of basalt and limestone falcon statues.

The research team said their excavation revealed the site had experienced several phases of development and transformation. For example, the ancient Egyptian site appeared to peak during the Ptolemaic period before being converted in the third century into a military barracks. Roman-era circular kilns containing limestone remains revealed during the latest excavations suggest the site had finished its life as an ancient lime quarry.

Findings “Support the Hypothesis” Connecting Site to Msen

When discussing the significance of the discoveries, including an inscription potentially connecting it to the ancient lost Egyptian city of Menes, Minister of Tourism and Antiquities Sherif Fathy said the ongoing efforts help document valuable ancient sites in North Sinai and the Qantara region. The minister said this effort also highlights the site’s role in protecting ancient Egypt across several generations.

“The current results confirm that Tel Abu Saif represents one of the main sites along the Horus War Road, revealing the sequence of military, religious, and economic functions at the site, reflecting its strategic importance and its role in protecting Egypt’s eastern borders, as well as its religious status during the Pharaonic, Babylonian, and Roman eras,” the post explained.

Secretary-General El-Leithy echoed the sentiments, highlighting decades of work at the site before the new discoveries. He also said the new data has improved the understanding of previous discoveries of architectural elements made at the same site, including the site’s layout, development, and potential connection to the ancient lost Egyptian city of Msen.

“The head of the mission confirmed that the results obtained by the mission during the current season, in addition to what was previously revealed in previous seasons, support the hypothesis of the connection of Tel Abu Saif to the Pharaonic city of ‘Msen’ mentioned in ancient Egyptian texts and sources during the modern era,” the post concluded.

Christopher Plain is a Science Fiction and Fantasy novelist and has spent the last six years as Associate News Editor and Head Science Writer at The Debrief. Follow and connect with him on X, learn about his books at plainfiction.com, or email him at christopher@thedebrief.org.

Spanish archaeologists excavating an ancient Egyptian tomb in the Theban Necropolis opposite Luxor have discovered an unexpected order to how the 16 mummified human remains were placed within it over several centuries.

The team studying chamber three of tomb TT 209 also found the completely unexpected remains of a mummified dog placed carefully among the ancient burials, suggesting a deep connection between humans and animals or a previously unidentified ritualistic practice.

Researchers Document Ancient Egyptian Tomb in Detail

The Theban Necropolis contains over 400 tombs. Previous studies have determined that the burial space was used and reused from its construction during Egypt’s Twenty-fifth Dynasty (754-656 BCE) until its abandonment during the Ptolemaic period (305-30 BCE).

However, archaeologists are still searching for new clues to the people who built them and those buried inside. Dr Miguel Ángel Molinero Polo, a professor of Egyptology at the University of La Laguna and the senior author of the study detailing the team’s discoveries, said researchers have “few details” about how people who entered the tombs behaved. Dr. Polo also noted a lack of knowledge about these people’s motivation “in each historical period” the site was in use, and how they “conceptually reconfigured the pre-existing space” as time passed.

The research team ultimately determined that the best way to explain the methodology for placing the human remains and individual dog remains found in the ancient Egyptian tomb was to excavate the chamber and photograph the mummies. They also decided to create sketches and descriptions of the mummy’s position, orientation, and any possible relationship with the overall structure. 

Archaeologists Unearth 16 Mummified Bodies and Related Funerary Items

As the team began cataloging their findings, they realized the chamber contained nine funerary deposits, which they described as “individual and multiple burials.” The site also contained several “associated funerary objects.”

“We found a total of 16 mummified human individuals, a mummified dog, and a disturbed deposit containing the remains of at least four individuals,” explained Dr. Jared Carballo-Pérez, a researcher at the University of La Laguna and the study’s first author.

After further examination, a pattern began to emerge. For example, the earliest burials were relatively separated. These earliest bodies were also placed in coffins, with funerary nets and amulets. These burials also contained what Dr. Molinero Polo termed “an assemblage containing costly items, such as the contents held in Phoenician amphorae,” placed with or near them. The research said these discoveries suggest that these individuals were likely “of high social standing.”

When the researchers examined the second layer, they noted that bodies were less carefully placed and instead “inserted into any space available.” Critically, this shift occurred towards the end of the 25th dynasty and into the Persian period (around 680-404 BCE).

Examples of the new interment method include limb positioning. In one case, an arm was found folded in, and in others, two arms were folded.

This positioning differed from earlier burials, where the arms were stretched out. The team also cataloged a change in body position in the ancient Egyptian tomb, with later mummies deposited vertically. The team said the resulting “superposition of bodies” was found in two-thirds of the burial chamber.

Still, Dr. Molinero Polo explained, although the vertically positioned bodies were not placed in coffins, the remains were “carefully mummified.” The researcher said the later internments “can be associated with upright jars that point to a specific ritual not found in the earlier phases of the tomb’s use.”

Mummified Dog Buried with Humans Suggests Intimate Relationship

Perhaps the most unexpected find inside the ancient Egyptian tomb was the remains of a mummified dog. Even more unexpected, the animal’s remains were buried with human remains “one on top of another.”

“One detail I find quite beautiful is the presence of a mummified dog placed directly on top of the mummies of a man and a woman,” said Carballo-Pérez.

The researcher said this preferred, intimate placement could suggest a close relationship between the animal and its humans, “an idea that I think is quite easy to empathize with.” Carballo-Pérez said the unexpected placement could also reflect a change in funerary or ritualistic practices, “with an animal taking on the role of a psychopomp, a symbolic helper in the journey to the afterlife.”

Although an initial examination gave the team the impression the site’s internment became less organized over the centuries, they said that impression was likely false. For example, the team notes that bodies buried in the Osirian position, meaning both arms folded, suggest that the ancient Egyptian tomb “did not become disordered or without structure, or that cultural rites were lost.”

“The detailed study of the bodies indicates neither chaotic accumulation nor a loss of the original ritual over time,” Dr. Carballo-Pérez explained. “Rather, there was a spatial logic in which each new deposition was adapted to the presence of previous bodies – a kind of funerary memory in the processes of reuse.”

The team conceded that it was sometimes difficult to identify the sequence of some of the funerary deposits, including what they described as the “disturbed” remains of four individuals. They also suggest that the chamber was likely flooded several times over the centuries, experienced periodic fires, and human re-entry, which “transported debris within the tomb.”

Still, Carballo-Pérez concluded that their findings suggest deposits previously considered ‘disordered’ can now be reinterpreted.

“This helps us develop a better understanding of the social behaviors behind funerary practices,” the researcher explained.

The study “From individualized mummies to collective accumulations: an archaeothanatological analysis of funerary reuse in Theban Tomb 209 (Twenty-Fifth Dynasty–Ptolemaic Egypt)” was published in Frontiers in Environmental Archaeology.

Christopher Plain is a Science Fiction and Fantasy novelist and has spent the last six years as Associate News Editor and Head Science Writer at The Debrief. Follow and connect with him on X, learn about his books at plainfiction.com, or email him at christopher@thedebrief.org

The Egyptian archaeological mission under the authority of the Supreme Council of Antiquities has brought to light, during excavation work carried out in the archaeological area of Kom el-Khilgan, in the Dakahlia Governorate, a necropolis whose origins date back to the Predynastic Period and whose use continued through the Greek and Roman eras, together with […]

The silvery fur of the hamadryas baboon is, under a spectrometer, nearly the exact color of moonlight, which may explain why ancient Egyptians made a monkey the face of their moon god, according to a new study in Time and Mind.

The work, from biological anthropologist Nathaniel Dominy of Dartmouth College and primatologist Catherine Hobaiter of the University of St Andrews, takes an old Egyptological question and points an instrument at it. Thoth, god of the moon, writing, and magic, had two sacred animals: the ibis and the baboon. The ibis makes sense. A curved beak echoing a crescent, white plumage the same color as the moon’s glow.

The baboon, however, has long “defied explanation,” as one Egyptologist put it; the key problem being that baboons didn’t live in Egypt.

Egypt’s pantheon features many local creatures, from the jackals that haunted its cemeteries to the cow that stood in for the mother goddess Hathor. But no wild baboon has ever been found in Holocene Egypt. The hundreds recovered from tombs and temples were all imports, carried in by ship from somewhere down the Red Sea coast. Of all the animal gods, the baboon is the only foreigner.

“Why would two such different animals be used to represent one deity? Most other Egyptian deities are represented by just one type of animal. Ancient Egyptians were familiar with at least three species of ibis, but they chose the white one for embodying Thoth. They were also familiar with two species of baboon, along with vervet monkeys and patas monkeys, but again they chose the silver-white species,” explained lead author Professor Catherine Hobaiter in a press statement.

According to the study, the Egyptians were picky. They knew two species of baboon and three of ibis, and each time they deified only one of each.

“Sacred ibises and hamadryas baboons are different in many ways, but one thing that unites them is their moon-like colour,” Hobaiter said.

To test whether color was the thread, the team recorded reflectance spectra from the hair of 12 baboon specimens at the American Museum of Natural History and lined them up against the measured spectrum of moonlight. The olive baboon came back green, peaking around 525 to 650 nanometers (which is precisely why it is called the olive baboon). The hamadryas came back silver-gray, roughly 65 percent brighter, with a curve the authors call “indistinguishable from moonlight.”

 

According to the study and historical records, the living emblem of Thoth is not just the hamadryas but the mature male, with his heavy silver shoulder mantle and white cheek ruffs. This head of hair is so reflective the authors clock it as brighter than a golden lion tamarin, a monkey practically famous for glowing. The Germans noticed too. Their name for the animal is Silberpavian, the silver baboon.

There is a stranger layer beneath the color. Egyptians kept baboons in their temples partly to watch them, because the animals seemed to answer to the moon. There are historical records which indicate that male baboons in Egypt, during a fifth-century solar eclipse, fell into a state of “grief” and, according to the ancient writer, entered a sort of trance of reverence. 

Modern ethologists watching zoo baboons during the 2017 total eclipse logged something uncomfortably close: activity falling away, the animals going quiet and huddling together. The Egyptians, in effect, may have kept a small colony of living eclipse detectors and read their unease as devotion.

History being what it is, and not an exact science, the authors are careful not to pretend that their findings are direct evidence as to why Ancient Egyptians made gods of baboons. A spectrometer can confirm that a baboon is the color of moonlight. It cannot confirm that the color is why anyone bowed to it. The argument rests on a 2024 etymology tracing Thoth’s name to a word meaning roughly “bright-thing.”

There is also an irony the study mostly steps around. The male’s silver mantle did not evolve to look like the moon; it evolved as a sexual signal, a way for dominant males to advertise themselves to other baboons. The Egyptians took a mating ornament and read it as a message from the sky.

That may be the most human thing in the whole account. The Egyptians were meticulous observers who noticed that one animal, in one sex, at one particular brightness, resembled the thing they worshiped, and decided the resemblance meant something.

One of those baboons even has a name. Harnufi was brought to Egypt in the sixth year of Ptolemy V and entombed 31 years later, on September 6, 168 BC. Someone counted out his life in years, mummified him, and laid him down as a small gray piece of the moon.

The archaeological mission under the Supreme Council of Antiquities has uncovered, during its first excavation campaign at the Tell Nasser archaeological area, a comprehensive complex of bathing facilities dating back to the Ptolemaic and Roman periods. The site is located approximately 40 kilometers south of the city of Port Said, 35 kilometers north of the […]

Thousands of years ago, a striking blue pigment began appearing in the art that adorned the walls of ancient Egyptian tombs, and eventually on the crown of the famous bust of Nefertiti, wife of the 18th dynasty pharaoh Akhenaten and half-sister to one of Ancient Egypt’s most famous kings: Tutankhamun.

However, the ancient artists who first used this remarkable pigment, known today as “Egyptian blue,” had likely never guessed that thousands of years into the future, this unique substance would have applications in modern biomedical research.

That is precisely what one team of researchers discovered several years ago, in a study that revealed how this striking pigment is more than just a modern medical marvel with origins in the ancient world—it also provides evidence of ancient nanotechnology in early Egypt.

The Enigma of Egyptian Blue

“Egyptian blue” is the common term for a pigment first developed in ancient Egypt around 2500 B.C., made from calcium copper silicate. Originally, it was created to provide an artificial alternative to a more costly form of blue pigment from the era, which was produced using lapis lazuli.

However, ancient Egyptian scientists discovered that by heating limestone, sand, and copper, they could produce a far less expensive form of blue pigment, and soon its use spread throughout the ancient Mediterranean world, making its way into the craftsmanship in parts of the ancient world that ranged from Mesopotamia to Greece and Rome.

An Ancient Technology Finds Modern Biomedical Applications

Although Egyptian blue’s obvious practical uses in art were derived from its unique and stunning appearance, time would eventually reveal that it had other uses. Specifically, in a 2020 study published in Nature Communications, a team of researchers reported on their discovery that Egyptian blue in its powdered form can be separated into nanoscale sheets roughly 100,000 times thinner than a human hair.

This is significant because these tiny particles of the substance exhibit significant fluorescence under near-infrared light, which can be used by researchers to track them within biological samples.

Chemist Sebastian Kruss of Georg-August University Göttingen, the lead author of the 2020 study, remarked at the time that he was certain such capabilities “will be of growing interest for material scientists as well as biomedical research” in the years ahead.

Ancient Nanotech’s Survival Through the Centuries

One reason the pigment is so useful is also the likely reason behind its discovery, and that is Egyptian blue’s durability. For many millennia, samples of this unique material have managed to survive, and the material’s nanoscale form remains stable even over such long periods.

In the past, earlier studies had demonstrated that the material fluoresces in near-infrared wavelengths. Additionally, it was known to scientists that the pigment could be broken down into flakes after being stirred in hot water for periods of several days.

Building on this knowledge, the research detailed in the 2020 paper sought to go even further by examining whether those particles could function as fluorescent markers in living systems.

Near-Infrared Applications

One thing that scientists find useful about near-infrared imaging is that it provides an effective way to examine biological material by leveraging wavelengths that fall just beyond the ranges of the visible spectrum.

Although some molecules can already be used as fluorescent markers, Egyptian blue nanoparticles generate significantly brighter signals than several common alternatives. Additionally, unlike other fluorescent compounds, the pigment can resist photobleaching, which is important because this allows its glow to persist even during prolonged observation.

A pair of experiments was used by the team to demonstrate the material’s potential. The first involved using Egyptian blue particles injected within a fruit fly embryo, which were tracked as it developed. In another, the particles were added to plant leaves, allowing comparisons with the performance of a conventional near-infrared imaging molecule.

In this experiment, the team found that the Egyptian blue produced a bright signal that remained visible even against the leaves’ natural fluorescence—the comparison molecule, by contrast, was heavily obscured.

According to Kruss, the tiny Egyptian Blue particles prove to be “very useful glowing labels in biomedical research,” calling the pigment a “very powerful fluorophore.”

An Ancient Discovery Breaking New Ground in the 21st Century

According to Kruss and his colleagues, such particles could eventually help scientists observe processes including embryonic development and cell division, while potentially supporting applications such as image-guided surgery and the labeling of cancerous tissue.

Altogether, this enigmatic form of ancient nanotechnology is still playing a role in helping develop the cutting-edge biomedical technologies of tomorrow, even more than 5,000 years after its initial discovery.

Kruss and his team’s original paper from 2020, “Exfoliated near infrared fluorescent silicate nanosheets for (bio)photonics,” was published in Nature.

Micah Hanks is the Editor-in-Chief and Co-Founder of The Debrief. A longtime reporter on science, defense, and technology with a focus on space and astronomy, he can be reached at micah@thedebrief.org. Follow him on X @MicahHanks, and at micahhanks.com.

A “cursed” ancient Roman tablet, intended to invoke divine and demonic wrath upon one’s enemies, has been deciphered by researchers at Heidelberg University in Germany.

The magical lead tablet, originally discovered by Dutch archaeologists in the Netherlands, was crafted in the second century AD. Strangely, it is written in ancient Greek, although in an Egyptian style, rather than the Latin that would be expected for what was then a Roman province of Lower Germania.

Today, the excavation site within the city of Heerlen in the southeast of the Netherlands, near the German border, is home to the country’s largest ancient Roman ruins.

Curse Tablets

The object is not entirely unique, as it belongs to a category of curse tablets called katadesmoi in Greek and defixiones in Latin. The Greeks and Romans believed that cold, heavy iron was especially useful in binding supernatural entities, making it the go-to material for crafting such objects.

As this artifact’s material was both cold and heavy, it reminded ancient people of the bleak underworld. Additionally, lead is also easy to work with in practice, as it is both inexpensive and easy to inscribe.

These small tablets were typically inscribed with curses and then buried, with the intention of bringing misfortune upon rivals in matters of sport, law, or love.

At the time the tablet was created, Heerlen was a Roman military settlement known as Coriovallum. Dutch archaeologists unearthed the 9.3-by-4.8-centimeter katadesmos from a pit beneath the former town square.

Deciphering an Ancient Curse

Researchers at the University of Heidelberg’s Institute for Papyrology used reflectance transformation imaging, a technique that combines photographs taken under different lighting conditions to enhance subtle surface details. Their analysis revealed three distinct types of characters within the inscription.

The combination of Egyptian-style invocations of deities and demons written in ancient Greek is highly unusual for a region where Latin was the dominant written language. Also notable are three symbols known as “Characteres”—magical symbols believed to facilitate communication with supernatural entities—along with two male and two female names.

Dr. Rodney Ast, Academic Director of the Institute for Papyrology, suggests that these four individuals were either the targets of the curse or those on whose behalf it was created. However, Dr. Julia Lougovaya, a research associate at the institute, notes that the male names are Latin while the female names are Greek, a distinction that may hold additional significance.

“It cannot be ruled out that one of the two women was the author of the inscription and had brought the supposed ability to communicate with divine powers through such curses with her from Roman Egypt,” said Dr. Lougovaya.

Ancient Magical Practices

Magic played an important role in Egyptian society, where rituals aimed at healing and protection formed a visible part of religious life, while malicious spells were typically practiced more discreetly.

“In the early centuries A.D., Near Eastern, Egyptian, Jewish, and sometimes even Christian traditions increasingly merged and spread throughout the entire Roman Empire of that time – a development that the discovery from Heerlen impressively underscores,” explained Prof. Joachim Quack, Director of the Institute for Egyptology at Heidelberg University.

A forthcoming scholarly publication will provide the full transcription of the inscription and details of the analysis. The tablet is also scheduled to go on display at a museum in Heerlen in the future.

Ryan Whalen covers science and technology for The Debrief. He holds an MA in History and a Master of Library and Information Science with a certificate in Data Science. He can be contacted at ryan@thedebrief.org, and follow him on Twitter @mdntwvlf.

A joint expedition to the ancient Egyptian city of Elkab has unearthed several previously unknown ancient rock art inscriptions, including what the team believes are the earliest known monumental Egyptian hieroglyphs.

Written over 1,000 years before the Great Pyramid of Giza was constructed, these ancient Egyptian writings, discovered by archaeologists from Yale University and the Royal Museums of Art and History (Brussels), laid the foundation for the later, better-known hieroglyphic writing system.

Yale Professor John Coleman Darnell, the expedition’s leader and the co-director of the Elkab Desert Survey Project, said the newly discovered inscriptions, which were not recorded by any previous scientific expedition, include samples as far back as 4,000 BCE.

Although the team concedes that these are not the first examples of this specific style of rock art, they are the first of this ancient age and “monumental” scale, making them of great significance in the history of ancient Egyptian writing systems.

“This was not what I was expecting to find when I set out on this period of work on the expedition,” Professor Darnell said of the historic find. “It was completely shocking to me.”

Earliest Monumental Egyptian Hieroglyphs Depict Cosmological Concepts

In a Yale news story announcing the discovery, Professor Darnell noted that the newly discovered rock art site of El-Khawy preserved some of the earliest and largest signs “from the formative stages of the hieroglyphic script.” The professor added that the discovery includes “rare” evidence for how this enigmatic ancient society invented its internationally recognized ancient writing system.

The expedition, which was directed by Darnell and Dirk Huyge, was undertaken in cooperation with the Ministry of Antiquities and the Aswan and Edfu inspectorates.

After photographing the newly discovered inscription, Darnell and Alberto Urcia, a digital archaeologist and associate research scientist in the University’s Department of Near Eastern Languages and Civilizations, created a series of three-dimensional (3D) images. Darnell said the new technology allows archaeologists to record ancient sites and artworks “at a level of accuracy and detail that was absolutely impossible before.”

“It also means that we can record the site as a place, or a location, and not just as a series of inscriptions,” the professor added.

One of the more noteworthy examples of ancient monumental hieroglyphs, carved sometime between 4,000 and 3,500 BCE, depicted a herd of elephants. A closer examination also revealed that one of the elephants had an image of a smaller elephant inside of it, which Professor Darnell described as “an incredibly rare way of representing a pregnant female animal.”

A second discovery detailed by the joint expedition, which consists of four separate panels, was likely created sometime around 3,250 BCE. Written right to left, which ultimately became the dominant writing form in later Egyptian hieroglyphic languages, the panels show animal images of a bull’s head on a short pole, followed by two back-to-back saddlebill storks with a bald ‘ibis’ bird above and between them.

The research team said this arrangement of symbols is common in Egyptian representations created centuries after the newly discovered panels depicting the solar cycle. These same depictions typically include imagery of luminosity. Darnell suggested that the images may also express “the concept of royal authority over the ordered cosmos.”

“This is the First Time That Anyone Has Seen Them on Such a Massive Scale”

When discussing the importance of the new find, Professor Darnell noted the immense size of the individual tableaus and their elements. For example, each individual hieroglyph identified by the Yale-led team measures over half a meter in height. The professor also noted that the entire tableau “is about 70 centimeters (27.5 inches) in height,” whereas previously discovered signs of early Egyptian hieroglyphs were “only one or two centimeters in size.”

“This discovery isn’t new in the sense that this is the first time that anyone has seen these hieroglyphs,” Darnell explained, “this is the first time that anyone has seen them on such a massive scale.”

To offer a perspective on the discovery’s significance, the professor said a modern-world equivalent would be seeing smaller text displayed on your computer screen, “and then suddenly seeing very large ones made the same way,” only displayed up on a highway billboard.

When discussing the site’s location in the northeastern desert hinterland of Elkab, Darnell noted that it was a “very important” center in ancient Egypt, which demonstrates that the area’s budding communicative system “is not limited to the more commonly found small tokens or labels.”

The professor also said the study shows that ancient writing did not develop slowly “for bureaucratic use,” as researchers had previously believed. Instead, Darnell suggested that the discovery shows hieroglyphic-style writing “was more geographically widespread and topically diverse at the time of or shortly after its development.”

“This also suggests that there is a much more expansive use of the early writing system than is indicated from other surviving archaeological material,” the professor added.

Christopher Plain is a Science Fiction and Fantasy novelist and Head Science Writer at The Debrief. Follow and connect with him on X, learn about his books at plainfiction.com, or email him directly at christopher@thedebrief.org.

For more than four and a half millennia, the Khufu Pyramid has stood on the Giza plateau, enduring dozens of earthquakes without serious structural damage.

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