Event Brief
May 31, 2026 at 9:00 AM ET
Soviet Union detonated Tsar Bomba over the Arctic
By The BriefBrief
On 30 October 1961, the USSR detonated the 50-megaton Tsar Bomba over the Arctic.
WHO: Soviet Union (USSR)
WHAT: Detonated the Tsar Bomba nuclear device over the Arctic
WHEN: May 31, 2026 at 8:33 AM ET
WHERE: Arctic
WHY: To conduct a nuclear test involving the Tsar Bomba device.
How this brief is built: The BriefBrief correlates multiple sources into one evolving event brief, updated as new facts emerge.
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