On August 9, 1945, the US Army Air Force dropped the plutonium-fueled Fat Man atomic bomb over Nagasaki, Japan, in the second, and so far the last, atomic bombing of a population. The Manhattan Project facility at Hanford produced the plutonium used in the Fat Man bomb and in the Trinity Test on July 16, 1945. Commemorative EventsEvery July, we post a full schedule of events on the Days of Peace and Remembrance web page, park calendar, and Facebook page. |
Last updated: July 31, 2023