Record 090 · March 2023
Physical Constraints on Unidentified Aerial Phenomena
All-domain Anomaly Resolution Office (AARO), Department of Defense / Harvard Galileo Project · United States
Ledger illustration of the record — not a scan of the original paper. — Night Ledger illustration of the file
The paper examines the feasibility of extraterrestrial equipment reaching Earth, considering both space trash and functional autonomous probes equipped with AI that could survive long journeys. It notes coincidences in orbital parameters between certain interstellar objects and considers the operational construct of a parent craft releasing many small probes during close passage to Earth. The analysis draws on the 2021 ODNI UAP report and the Galileo Project's scientific approach. It stresses that while the extraterrestrial hypothesis cannot be ruled out without data, rigorous empirical evidence is required, and current observations do not confirm non-human intelligence or technology. The document focuses on physical constraints spanning galactic scales and the challenges of detecting or confirming such phenomena.
Public file: National Archives Catalog (RG 615)
