Case File · AARO · First Saucer Wave (1947-1952) Declassified May 8, 2026 · PURSUE Release 01

1947 UAP Sighting — AARO Records (D209P2)

UFO Visual Sighting

A material specimen, claimed to be recovered from a UAP crash, is composed of magnesium, zinc, bismuth, and other trace elements. The specimen's properties are alleged to enable inertial mass reduction, potentially through terahertz waveguiding. AARO initiated an investigation in

February 2023
Unknown location
Source document: PURSUE doc 209
Source document: PURSUE doc 209 · Source: declassified document

Background

A UFO/UAP incident extracted from page 2 of ORNL Synopsis Analysis of a Metallic Specimen, an All-domain Anomaly Resolution Office (AARO) document published in 2024-2025. The incident is dated 1947 and located in Unknown location.

What the document records

A material specimen, claimed to be recovered from a UAP crash, is composed of magnesium, zinc, bismuth, and other trace elements. The specimen’s properties are alleged to enable inertial mass reduction, potentially through terahertz waveguiding. AARO initiated an investigation into the specimen’s origin and properties, collaborating with Oak Ridge National Laboratory to perform characterization studies.

Witnesses on file: unspecified.

Status of the case

The page-level assessment recorded in the document is: no agency assessment. AARO designates unresolved cases as those for which the agency has not concluded the events were anomalous, has not concluded they were conventional, and has not ruled out either possibility. Conventional candidates for sightings of recent periods include drones, classified test platforms, satellite re-entry, balloon traffic, atmospheric optical phenomena, and astronomical objects.

Sources