The Kingman UFO Crash, Operation Upshot–Knothole and Experimental Radar

     Spring 1953, the Atomic Energy Commission unleashed a series of massive explosions at the Nevada Test Site, codenamed “Upshot Knothole.”
By George Knapp
Mystery Wire

In the same time period, across the state line in Arizona, witnesses reported seeing a fleet of eight flying saucer-type craft engaged in what looked like a dogfight. This is an artist’s rendition of the event:

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