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Faceted archive of NUFORC reports — filter by shape, place, and decade. Every URL is deterministic SSR (cacheable at the edge).

A radar operator near Chicago reported tracking an unidentified object moving at an extreme reported speed for about 45 seconds in December 1952.

A witness in Chicago, Illinois reported a metallic, silver, round, saucer-shaped object, observed for about 45 minutes in April 1952.