Between the years of 1946 and 1958 the United States performed 67 atomic bomb tests in the Marshall Islands—including the famously named Bikini Atoll and other nearby islands and atolls. It has been reported that as much as half of the world’s moving picture and still film supply was shipped to the area during this time, thus thoroughly document the “atmospheric tests”. While these peacetime bomb experiements yielded horrific results on imported lab animals, island natives, and the environment, the images are nonetheless jaw-dropping. Here are twelve of the most spectacular photos from the U.S. hydrogen and atomic bomb drops in the Marshall Islands. Here: Operation Greenhouse, “George”, May 9, 1951 Courtesy U.S. Department of Defense Operation Crossroads, “Baker”, July 25, 1946 Naval History and Heritage Command Operation Ivy, “Mike”, November 1, 1952 Courtesy of National Nuclear Security Administration Operation Crossroads, “Able” July 1, 1946 Courtesy Naval History and Heritage Command Operation Crossroads, “Baker”, July 25, 1946 Courtesy of National Nuclear Security Administration Operation Crossroads, “Baker”, July 25, 1946 Courtesy U.S. Army Photographic Signal Corps Operation Ivy, “King”, November 16, 1952 Courtesy of National Nuclear Security Administration Operation Crossroads, “Baker”, July 25, 1946 Courtesy U.S. Department of Defense Operation Greenhouse, “George”, May 8, 1951 Courtesy United States Department of Energy/National Nuclear Security Administration Operation Castle, “Romeo”, March 26, 1954 Courtesy United States Department of Energy/National Nuclear Security Administration Operation Redwing, “Seminole”, June 6, 1956 Courtesy National Nuclear Security Administration Operation Redwing, “Seminole”, June 6, 1956 Courtesy National Nuclear Security Administration