Deep within ancient chamber tombs where elite members of society in ancient Greece and Crete were once laid to rest, new evidence has emerged that these high-status individuals wore some out-of-this-world iron jewelry.

Among the most coveted jewelry worn in the Bronze Age Mediterranean world were rings that were likely made from extraterrestrial iron, according to a new study published in the Journal of Archaeological Science.

Researchers Matthieu Gounelle and Eleni Mantzourani used chemical analysis to examine more than 90 iron objects from the Bronze Age and Early Iron Age, uncovered from 33 archaeological sites, revealing that about one-third of the artifacts were likely crafted using iron that fell from space.

Although iron harvested from ancient meteorites accounted for at least 10 of the rings the researchers examined, another three “might deserve further examination,” the study’s authors say, in new observations that indicate these ancient extraterrestrial adornments “may have been popular power symbols among prominent individuals” that included the Mycenaean and Minoan palatial elite.

Yet despite their apparent significance, the otherworldly fashion trend involving these otherworldly rings seems to have mysteriously vanished by the 12th century BCE, for reasons that remain unclear to researchers.

Meteoritic Iron as a Status Symbol

Using portable X-ray fluorescence, or XRF, to assess these rare artifacts in various museums where they are kept, most of the objects were found to contain very little nickel, if any at all. This is consistent with iron produced using smelting processes from the periods in question, which relied on terrestrial ores.

However, 13 of the objects possessed elevated levels of nickel, which hinted at the likelihood that some of these ancient rings had been crafted with metal originating in meteorites, which contain far more nickel than smelted varieties of iron do.

Another intriguing discovery the researchers made was that each artifact suspected of being made from meteoritic iron was either a whole or fragmentary signet or bezel ring, combining the suspected meteoritic iron with gold, silver, or bronze. Most were also found in various chamber tombs alongside other luxury goods, adding to the likelihood that these unique artifacts may have been considered symbols of status or authority.

Where Did Ancient Greeks Obtain Extraterrestrial Iron?

However, another mystery involves the source of the meteoritic material, which remains uncertain since extraterrestrial iron was uncommon in ancient Greece. Because of this, the team suspects that one reason for this material’s role as a status symbol may have been not just its otherworldly nature, but also the fact that it was likely imported.

“Given the rarity of meteorites in Greece and the established trade networks during the Bronze Age, we propose that the source of the raw meteoritic material was Egypt,” the team writes, “where meteorites are numerous due to the abundance of deserts.”

Several famous examples of meteoritic iron have been recovered from Egypt, which include a dagger found among the items entombed with the Pharaoh Tutankhamun.

The abundance of rings made from this extraterrestrial metal contrasts with the more common iron objects that appear to have been made from smelted material. This suggests that ancient metalworkers recognized the distinction between the materials, and ascribed higher value to the far rarer meteoritic forms of iron.

An Otherworldly Fashion Trend Goes Missing

Curiously, the researchers also found that by around the 12th century BCE, this otherworldly fashion trend appears to have almost completely vanished, and for reasons that remain unclear.

Possible reasons for this may include interruptions to trade networks, political upheaval, or simply changes in trends from the period. However, one potential clue is that the ancient Greeks’ production of meteoritic iron rings seems to have ended coinciding with the collapse of the Mycenaean palace system.

“Such a development could be related to economic, social or political changes,” the team speculates, although they also acknowledge more mundane possibilities.

“It is also possible that the meteoritic finger ring fashion, almost exclusive to Minoan and Mycenaean Late Bronze Age, has ‘naturally’ faded away as does any fashion,” the researchers write.

The recent study, “Iron in Greece in the second millennium B.C.E.,” appeared in the Journal of Archaeological Science. 

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.

Astronomers searching for extraterrestrial intelligence have traditionally focused on a specific, narrow band of the radio spectrum. However, a new survey presented at the Royal Astronomical Society‘s National Astronomy Meeting (NAM2026) in Birmingham suggests that this approach may overlook a significant portion of the available frequencies.

The frequencies most often investigated by SETI (Search for Extraterrestrial Intelligence) programs are those between 1.42 and 1.66 GHz. This range, known as the ‘water hole’, is situated between the natural radio emissions of hydrogen and hydroxyl, the two molecules that make up water. Astronomers have regarded this quiet section of the spectrum as a reasonable place for interstellar communication, because any civilization acquainted with these molecules would probably also decide to send and receive signals in search of in that specific region.

Louisa Mason, who is carrying out research as a PhD student at the University of Manchester, focused on investigating frequencies outside the water hole range. To carry out the first SETI survey with that telescope, she used archived data from the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile. She analyzed data originally collected for other astronomical studies instead of requesting new observation time.

Hunting for Signals in Unclaimed Territory

Mason focused on two narrow frequency bands in the ALMA Band 3 data, looking for narrowband signals that might be the result of technology rather than natural astrophysical origins. In the four observations that she examined, she did not discover any candidates for technosignatures above her detection threshold.

“For decades, SETI searches have concentrated on a relatively small part of the radio spectrum. We wanted to ask what might happen if we looked somewhere very different,” Mason said. “The millimetre and submillimetre radio bands remain almost completely unexplored for SETI, so this is really about opening up a new area of parameter space to search.”

A lack of results does not rule out the possibility of alien transmitters. It only means that none appeared in this specific region of the sky and frequency range. Mason describes the survey as a proof of concept, showing that high-frequency telescopes like ALMA could play a much larger role in future SETI efforts.

A Much Bigger Haystack Than Anyone Realized

The research also revealed a gap in how astronomers count the stars they have actually examined. Each time a telescope observes a single target, it also collects light from many other stars in the same field of view. Researchers refer to this as “stellar bycatch.”

Previous SETI surveys have made this bycatch estimate based on the Gaia catalog, which is the European Space Agency‘s survey of the stars. However, Gaia has certain limitations such as its magnitude cutoffs, uncertainties when measuring distant stars, and difficulties in crowded areas. To overcome these limitations, Mason used the Besançon Galactic Model, a simulation of the Milky Way’s stellar population that includes stars that are too faint or too far away for Gaia to detect.

When Mason applied the model to a previous survey of 1,327 telescope observations, the estimated number of stars observed increased from about 288,000 with Gaia to over 6.1 million with the galactic simulation.

“One of the most exciting things about this work is realizing that we’ve surveyed many more stars than initially thought,” Mason said. “Even a very small observation can contain a huge number and diversity of stars that we might never have intended to study. By combining high-frequency observations with galactic simulations, we can better understand exactly what we’ve searched and where we should look next.”

Recommendations for SETI

Mason carried out this research in collaboration with Professor Michael Garrett, Dr. Andrew Siemion, and Dr. Kelvin Wandia. The team argues that expanding both the radio frequencies searched and the number of stars included could reduce the influence of human assumptions on SETI strategies. Whether these broader searches will detect technosignatures missed by traditional water-hole surveys remains unknown.

Austin Burgess is a writer and researcher with a background in sales, marketing, and data analytics. He holds an MBA, a Bachelor of Science in Business Administration, and a data analytics certification. His work focuses on breaking scientific developments, with an emphasis on emerging biology, cognitive neuroscience, and archaeological discoveries.

Interdimensional beings are extradimensional beings, as distinct from extraterrestrials are perceived as entities in realms beyond our physical universe, governed by different principles. These beings may exist as energy or abstract forms and are common in science fiction and spiritual demonic contexts. Modern scientific language is used to make them acceptable.