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This synopsis from the All-domain Anomaly Resolution Office, dated July 2024, reports findings on a magnesium-zinc metallic specimen with bismuth layers that is claimed to come from a UAP crash in or around 1947. AARO tasked Oak Ridge National Laboratory with testing the specimen's origin and whether it could act as a terahertz waveguide. ORNL concluded that the material was manufactured on Earth and later damaged by heat and mechanical stress. Its bismuth layers could not have served as a waveguide.
“National Academy of Sciences”1 page
Synopsis: Analysis of a Metallic Specimen
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