Within AARO Report
Was the alleged alien material just an alloy?
The alleged off-world material sample became a concrete test of whether retrieval claims had physical evidence behind them.
On this page
- What the sample was claimed to be
- What testing found about magnesium, zinc and bismuth
- Why physical evidence matters more than rumour
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Introduction
One of the most tangible tests of alien crash-retrieval claims is not witness testimony or leaked documents, but physical material. If a fragment of allegedly non-human technology can be examined in a laboratory, researchers can analyse its composition, structure and manufacturing history. For Sean Kirkpatrick and the All-domain Anomaly Resolution Office (AARO), this question became especially important because one frequently cited metal sample had long been promoted within parts of the UFO community as possible evidence of advanced or extraterrestrial engineering.
AARO’s investigation did not focus on rumours about the sample. Instead, it focused on what laboratory testing could establish. The resulting findings became a significant case study in the wider retrieval debate because they addressed a simple question: was the material genuinely exotic, or was it an unusual but terrestrial alloy? [AARO]aaro.milORNL Synopsis Analysis of a Metallic SpecimenAAROSynopsis: Analysis of a Metallic Specimen10 Jul 2024 — TEM revealed that the crystalline structure of magnesium in the specimen was c…
What the sample was claimed to be
The specimen at the centre of the controversy is often known within UFO circles as a layered magnesium-bismuth material, sometimes referred to as part of the “Art’s Parts” collection. Over the years, various researchers and enthusiasts suggested that its unusual layered structure might indicate an advanced manufacturing process beyond conventional aerospace technology. Some theories proposed that it could function as a specialised terahertz-wave device or represent debris from a recovered non-human craft. [To The Stars*]tothestars.mediaTo The Stars*Material of Interest: Magnesium-Zinc-BismuthOne artifact on loan to TTSA for analysis is a Magnesium-Zinc-Bismuth (MgZn/Bi)…
The sample gained additional attention because it was examined by organisations connected to UFO research efforts and was sometimes discussed alongside broader allegations that defence contractors were studying recovered extraterrestrial technology. In the modern disclosure debate, it became one of the few physical objects repeatedly cited as potentially supporting retrieval claims. [To The Stars*]tothestars.mediaTo The Stars*Material of Interest: Magnesium-Zinc-BismuthOne artifact on loan to TTSA for analysis is a Magnesium-Zinc-Bismuth (MgZn/Bi)…
That made it particularly relevant to Kirkpatrick’s broader argument. If a highly publicised material specimen could withstand independent scientific scrutiny, it would strengthen claims that crash-retrieval stories had a physical foundation. If it failed that scrutiny, it would suggest that at least some prominent material claims were being overstated.
What testing found about magnesium, zinc and bismuth
AARO submitted the specimen for advanced analysis, including work conducted with specialists at Oak Ridge National Laboratory (ORNL). The testing examined elemental composition, crystal structure, layering and isotopic characteristics. The results did not support an extraterrestrial interpretation. [AARO]aaro.milAAROAARO's Supplement to Oak Ridge National Laboratory's…High-resolution elemental mapping shows repeating layers of Bi and Pb banding… [AARO]aaro.milORNL Synopsis Analysis of a Metallic SpecimenAAROSynopsis: Analysis of a Metallic Specimen10 Jul 2024 — TEM revealed that the crystalline structure of magnesium in the specimen was c…
The material was found to consist primarily of magnesium and zinc, with bismuth, lead and trace elements present throughout the structure. Researchers concluded that it was a manufactured metallic alloy of terrestrial origin rather than an unknown material. [AARO]aaro.milAAROAARO's Supplement to Oak Ridge National Laboratory's…High-resolution elemental mapping shows repeating layers of Bi and Pb banding… [Metabunk]metabunk.orgAARO's Historical UAP ReportVolume 19 Mar 2024 — The sample is primarily composed of magnesium, zinc, and bismuth with some other trace elements, such as lead. This…
One important finding concerned the layered structure itself. Earlier descriptions had often portrayed the specimen as containing clean, distinct layers of magnesium alloy and pure bismuth. According to AARO and ORNL, detailed examination showed that the reality was more complex. The bismuth layers were not pure, contained lead contamination, and did not match the structure required by some of the more speculative theories about advanced electromagnetic functions. [AARO]aaro.milAAROAARO's Supplement to Oak Ridge National Laboratory's…High-resolution elemental mapping shows repeating layers of Bi and Pb banding… [Popular Mechanics]popularmechanics.comufo metal sample analysisThis Mysterious Metal Could Be Alien Technology, UFO…23 Mar 2026 — To qualify as a piece of alien technology, the sample would need to…
AARO’s supplementary technical report described repeated bismuth-lead banding and varying zinc concentrations throughout the sample. Electron microscopy also found magnesium crystal structures consistent with known terrestrial magnesium alloys rather than an unknown form of matter or manufacturing process. [AARO]aaro.milAAROAARO's Supplement to Oak Ridge National Laboratory's…High-resolution elemental mapping shows repeating layers of Bi and Pb banding…
The laboratories nevertheless noted that the material was unusual by modern manufacturing standards. “Unusual” did not mean extraterrestrial. Rather, it suggested an uncommon alloy or production method whose exact historical origin remained uncertain. Researchers proposed that it could plausibly be linked to experimental aerospace or military metallurgy from the post-war period, although they could not definitively establish its chain of custody or precise source. AARO [Gizmodo]gizmodo.comNeither AARO nor ORNL could verify the specimen's historical origin.Read moreGizmodoPentagon Publishes Report on Material From an Alleged…11 Jul 2024 — “Unsurprisingly, records of failed [magnesium] alloy design…
Why the terrestrial-alloy conclusion matters
The significance of the case extends beyond one metal fragment.
For supporters of Kirkpatrick’s sceptical approach, the sample illustrates a recurring problem in UFO investigations: an object can acquire an extraordinary reputation long before rigorous testing is performed. Once subjected to modern materials science, the object may turn out to be unusual but still entirely terrestrial. [Metabunk]metabunk.orgsean kirkpatricks interview with daniel lavelle at the guardian transcript.13399material that they claimed was part of a crashed UFO. And then… samples and telepathic aliens. jplaza said: Googling by "MgBi" shows…
AARO’s historical report explicitly cited the specimen as an example of an alleged off-world material that did not survive technical examination. The report concluded that the sample was a manufactured terrestrial alloy and did not possess exceptional properties indicative of non-human technology. It further suggested that later stories about aerospace firms reverse-engineering alien technology may have become intertwined with attempts to reproduce or study the sample itself. [U.S. Department of War]media.defense.govDOPSR 2024 0263 AARO HISTORICAL RECORD REPORT VOLUME 1 2024Department of WarAARO Historical Record Report Volume 18 Mar 2024 — The sample is primarily composed of magnesium, zinc. Page 9. 9 and…
Critics of AARO have not universally accepted the conclusion. Some researchers argue that the material still contains features they regard as unusual and contend that unanswered questions remain about its provenance. Others note that uncertainty about origin is not the same thing as proof of mundane manufacture. However, no publicly available testing has demonstrated non-terrestrial isotopic signatures, unknown elements, impossible manufacturing techniques or any other feature that would clearly indicate extraterrestrial origin. [To The Stars*]tothestars.mediaTo The Stars*Material of Interest: Magnesium-Zinc-BismuthOne artifact on loan to TTSA for analysis is a Magnesium-Zinc-Bismuth (MgZn/Bi)… [Medium]medium.combands of bismuth and trace elements. While AARO concluded…Read more…
Why physical evidence matters more than rumour
The material-sample debate highlights a broader credibility issue within crash-retrieval claims. Stories about secret programmes often depend on second-hand testimony, classified information or inaccessible documents. Physical artefacts are different because they can, at least in principle, be tested independently.
That is why this case became important within the wider AARO review. A laboratory analysis can reveal composition, impurities, manufacturing methods and isotopic ratios in ways that witness recollections cannot. The more extraordinary the claim, the more valuable such testing becomes. [AARO]aaro.milAAROAARO's Supplement to Oak Ridge National Laboratory's…High-resolution elemental mapping shows repeating layers of Bi and Pb banding…
From Kirkpatrick’s perspective, the magnesium-zinc-bismuth specimen illustrates the difference between an intriguing claim and demonstrable evidence. The sample was repeatedly presented as a candidate piece of exotic technology. After detailed examination, AARO and ORNL concluded that it was an earthly alloy with no verified anomalous properties. That conclusion does not settle every question about UFOs, nor does it prove that all retrieval allegations are false. What it does show is that one of the most prominent publicly discussed material samples failed to provide the physical proof that advocates of crash-retrieval claims hoped it would. [AARO]aaro.milAAROAARO's Supplement to Oak Ridge National Laboratory's…High-resolution elemental mapping shows repeating layers of Bi and Pb banding… [U.S. Department of War]media.defense.govDOPSR 2024 0263 AARO HISTORICAL RECORD REPORT VOLUME 1 2024Department of WarAARO Historical Record Report Volume 18 Mar 2024 — The sample is primarily composed of magnesium, zinc. Page 9. 9 and…
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Endnotes
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Source: aaro.mil
Title: ORNL Synopsis Analysis of a Metallic Specimen
Link: https://www.aaro.mil/Portals/136/PDFs/Information%20Papers/ORNL-Synopsis_Analysis_of_a_Metallic_Specimen.pdfSource snippet
AAROSynopsis: Analysis of a Metallic Specimen10 Jul 2024 — TEM revealed that the crystalline structure of magnesium in the specimen was c...
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Source: media.defense.gov
Title: DOPSR 2024 0263 AARO HISTORICAL RECORD REPORT VOLUME 1 2024
Link: https://media.defense.gov/2024/Mar/08/2003409233/-1/-1/0/DOPSR-2024-0263-AARO-HISTORICAL-RECORD-REPORT-VOLUME-1-2024.PDFSource snippet
Department of WarAARO Historical Record Report Volume 18 Mar 2024 — The sample is primarily composed of magnesium, zinc. Page 9. 9 and...
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Source: aaro.mil
Link: https://www.aaro.mil/Portals/136/PDFs/Information%20Papers/AAROs_Supplement_to_ORNLs_Analysis_of_a_Metallic_Specimen.pdfSource snippet
AAROAARO's Supplement to Oak Ridge National Laboratory's...High-resolution elemental mapping shows repeating layers of Bi and Pb banding...
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Source: metabunk.org
Title: AARO’s Historical UAP Report
Link: https://www.metabunk.org/threads/aaros-historical-uap-report-volume-1.13375/Source snippet
Volume 19 Mar 2024 — The sample is primarily composed of magnesium, zinc, and bismuth with some other trace elements, such as lead. This...
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Source: gizmodo.com
Title: Neither AARO nor ORNL could verify the specimen’s historical origin.Read more
Link: https://gizmodo.com/pentagon-publishes-report-on-material-from-a-reported-alien-aircraft-2000469433Source snippet
GizmodoPentagon Publishes Report on Material From an Alleged...11 Jul 2024 — “Unsurprisingly, records of failed [magnesium] alloy design...
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Source: metabunk.org
Title: [sean kirkpatricks]({{ ‘did-sean-kirkpatrick-debunk-ufo/’ | relative_url }}) interview with daniel lavelle at the guardian transcript.13399
Link: https://www.metabunk.org/threads/sean-kirkpatricks-interview-with-daniel-lavelle-at-the-guardian-transcript.13399/Source snippet
material that they claimed was part of a crashed UFO. And then... samples and telepathic aliens. jplaza said: Googling by "MgBi" shows...
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Source: medium.com
Link: https://medium.com/quantum-psychology-and-engineering/an-inquiry-into-the-material-evidence-of-non-human-intelligence-04dc38a85103Source snippet
bands of bismuth and trace elements. While AARO concluded...Read more...
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Source: tothestars.media
Link: https://tothestars.media/blogs/press-and-news/material-of-interest-magnesium-zinc-bismuth?srsltid=AfmBOorApNxghHtPrWXPVGdvE6KvxmF8r6Jp0TbPHV5L44I-BZFRGFrx -
Source: popularmechanics.com
Title: ufo metal sample analysis
Link: https://www.popularmechanics.com/science/a70820348/ufo-metal-sample-analysis/Source snippet
This Mysterious Metal Could Be Alien Technology, UFO...23 Mar 2026 — To qualify as a piece of alien technology, the sample would need to...
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Source: Wikipedia
Title: To The Stars Inc
Link: https://en.wikipedia.org/wiki/To_The_Stars_Inc -
Source: popularmechanics.com
Link: https://www.popularmechanics.com/science/a69821680/ufo-alien-tech/Source snippet
Initially thought to exhibit extraordinary properties suggestive of a technosignature—an indicator of intelligent extraterrestrial design...
Additional References
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Source: facebook.com
Link: https://www.facebook.com/AshleighBanfield/posts/a-former-air-force-general-allegedly-admitted-to-retrieving-alien-spacecraft-and/1523367722484552/Source snippet
A former Air Force general allegedly admitted to retrieving...#UFO #Aliens #Area51 #Roswell #UAP #Extraterrestrial #HiddenTruth #Governm...
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Source: reddit.com
Link: https://www.reddit.com/r/UFOs/comments/1e0pswd/aaro_releases_findings_on_suspected/Source snippet
AARO Releases Findings on Suspected Extraterrestrial AlloyThoughts on UFO material made of Bismuth-Magnesium. 116. 48. The AARO... r/UFO...
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Source: reddit.com
Link: https://www.reddit.com/r/UFOB/comments/1g8sk72/arts_parts_further_observations_of_the_roswell/Source snippet
Art's Parts: Further Observations of the Roswell SampleSome more observations off the [AARO report]({{ 'aaro-report-8d3982/' | relative_url }}): Definitely some kind of high kinetic e...
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Source: indiandefencereview.com
Link: https://indiandefencereview.com/ufo-hunters-claimed-metal-shard-levitate-objects-alien-technology-government-lab-other-ideas/Source snippet
UFO Hunters Claimed This Metal Shard Could Levitate...26 Mar 2026 — According to AARO and Oak Ridge National Laboratory's published find...
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Source: reddit.com
Link: https://www.reddit.com/r/UFOs/comments/9ji1pi/analyses_of_materials_allegedly_recovered_from/ -
Source: wsj.com
Title: pentagon ufo investigation lockheed martin 1bac3d41
Link: https://www.wsj.com/politics/national-security/pentagon-ufo-investigation-lockheed-martin-1bac3d41Source snippet
Was It Scrap Metal or an Alien Spacecraft? The Army...21 Jun 2025 — Sean Kirkpatrick, who had been tapped by the Defense Department to i...
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Source: reddit.com
Link: https://www.reddit.com/r/UFOs/comments/1fmbwbu/an_ufo_reverse_engineered_where_each_brick_cost/Source snippet
The possibilities are fascinating. Also it matches the description...Read more...
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Source: altpropulsion.com
Title: arts parts 1 ufo crash recovery material analysis
Link: https://www.altpropulsion.com/arts-parts-1-ufo-crash-recovery-material-analysis/Source snippet
Art's Parts 1: UFO Crash Recovery Material Analysis6 Apr 2025 — Extensive analysis by Linda Moulton Howe and others reveals more: •SEM im...
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Source: en.wikisource.org
Title: Page:AARO Historical Record Report Volume 1 2024
Link: https://en.wikisource.org/wiki/Page%3AAARO_Historical_Record_Report_Volume_1_2024.pdf/33Source snippet
AARO found that the structure was not purely layered magnesium alloy and bismuth.... Prior to AARO's acquisition of the sample, the...R...
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Source: facebook.com
Link: https://www.facebook.com/bakersfieldnow/posts/a-new-batch-of-declassified-pentagon-ufo-materials-is-fueling-fresh-public-fasci/1457315939771950/Source snippet
rtifacts from crashed UFOs, but finding extraterrestrial tech...
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