Bronze Ellipsoid Materializes And Vanishes, September 2023

Brief

Released May 8, 2026 as part of the Department of War UAP disclosure, this FBI document pairs an on-site photograph with a Bureau lab–rendered graphic synthesizing multiple eyewitness accounts from September 1, 2023. Witnesses described an ellipsoid object with a bronze metallic surface appearing within a bright light in the sky and vanishing without observable transition or trajectory. The reported 130–195-foot length places the object in the size class of a commercial regional aircraft, though the geometry and disappearance mode are inconsistent with any known airframe. No sensor data accompanies the release; the sole evidentiary basis is corroborating eyewitness testimony formalized by the FBI Lab.

Metadata

Agency

FBI

Release

5/8/26

Incident

9/1/23

Location

United States

Type

PDF • .pdf

Length

1 pages

Tags

ellipsoid, bronze metallic, materialization, instantaneous disappearance, bright light, 130-195 feet, eyewitness composite, United States, 2023

Key points

• Object shape: ellipsoid. Surface finish: bronze metallic.
• Reported length: 130 to 195 feet — a 65-foot uncertainty band suggesting multiple witness perspectives at varying distances.
• Object materialized from within a bright light in the sky — witnesses did not observe an approach vector.
• Disappearance characterized as instantaneous; no departure trajectory, deceleration, or fade was recorded in the accounts.
• The graphic is an FBI Lab overlay on an actual site photograph, implying the object was not itself captured in the underlying image — the rendering is a testimony reconstruction.
• Incident location given only as United States; specific site is not disclosed in the available description.

Most interesting

• The FBI Lab's choice to render a composite overlay atop an actual site photo, rather than release the photo alone, is a forensic technique typically reserved for cases where multiple independent accounts are deemed internally consistent enough to warrant a unified reconstruction.
• Instantaneous disappearance — with no Doppler signature, no sonic event, and no residual trail — is among the most analytically intractable UAP characteristics reported across decades of government documentation.
• A 130–195-foot ellipsoid corresponds roughly in length to a Boeing 737 or Airbus A220, yet no known aircraft of that scale can materialize from a stationary light source or depart without transition.
• The available description carries no classification marking, which is atypical for FBI Lab forensic products, which are ordinarily restricted during active investigations — suggesting either a deliberate disclosure decision or that the underlying investigation was formally closed before release.