FBI Files Reveal 1957 Radar UFO Tracked at 4,500 mph

Force intelligence. The committee's conclusion, recorded in an FBI memorandum dated September 24, 1957, was that it was "highly improbable that a Soviet operation is responsible" for the reports. This assessment was striking given the Cold War context, where any unknown radar track could be interpreted as a potential Soviet incursion.

S. scientific theory deemed possible for a physical object; the lack of visual confirmation despite attempts to scramble fighter aircraft; and the possibility that weather conditions could produce false radar returns. The case was further complicated by an 11-minute gap in tracking between the two radar sites, which undermined the continuity of the observation.

The FBI's role in this incident was primarily as a recipient and recorder of intelligence evaluations, rather than as an active investigator. The file shows that the Bureau received the IAC's findings and incorporated them into its own records, reflecting the interagency information-sharing protocols of…