United States conducts nuclear test shot "Zuni" as part of Operation Redwing nuclear tests at the Pacific Proving Grounds. Bright flash appears due to the Zuni shot bomb blast, the first ever of a three-stage thermonuclear design. Huge fireball boils upward into the sky. Spots of fire in sky as darkness spreads. Zuni was a 3.5 Megaton Hydrogen bomb with 85% of its yield from fusion. This was a companion test to the "dirty" (87% fission) Tewa shot using the same bomb design.
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