Conversation so far:
What did Paul Tibbets do after the war?
Paul Tibbets and the 509th Composite Group returned to the United States on 6 November 1945, and was stationed at Roswell Army Airfield, New Mexico.
What did Paul Tibbets do in New Mexico?
Paul Tibbets was a technical advisor to the 1946 Operation Crossroads nuclear tests at Bikini Atoll in the Pacific

Question: did anything big happen there?
Self-contained rewrite: Did anything happen with Paul Tibbets and his crew at Bikini Atoll?