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Faceted archive of NUFORC reports — filter by shape, place, and decade. Every URL is deterministic SSR (cacheable at the edge).
Cicero · IL, USA
Witnesses in Cicero, Illinois, just west of Chicago, reported an object or formation passing overhead in a triangular pattern for about two minutes in November 1953.
Chicago · IL, USA
A radar operator near Chicago reported tracking an unidentified object moving at an extreme reported speed for about 45 seconds in December 1952.