began with the design and testing of the world's first atomic bomb during the Manhattan Project. Visitors are introduced to the daily lives of the scientists who lived at Los Alamos and journey with them to the Trinity site, where the first explosion occurred in 1945. These exhibits include a series of displays striving for an objective examination of the history leading up to and the policy decisions regarding the deployment of the first nuclear weapons code-named Little Boy and Fat Man. The exhibit includes the text of comments by Manhattan Project staff (including a contentious Edward Teller statement advocating a high-altitude night-time demonstration detonation over Tokyo to precipitate Japanese surrender), the text of statements by Japanese politicians and military leaders, a copy of the petition protesting use without warning submitted by nuclear physicist Leó Szilárd, and photographs from the Hiroshima Peace Memorial Museum. The display also features video footage of the reminiscences of Col. Paul Tibbets (pilot of the Enola Gay, the B-29 bomber that dropped the atomic bomb on Hiroshima, Japan), and coverage of the emotion the surrender of Japan produced in the United States. Hiroshima and Nagasaki — This exhibit pays tribute to the people affected by the detonation of the atomic weapons that the Manhattan Project developed. This exhibit features images of these cities before, during, and after the bombings and representations of the commitment to peace that these communities continue to uphold today. Cold War — An examination of the strategic conflict between the United States and the USSR in the second half of the 20th century, through US nuclear testing in the Marshall Islands and at the Nevada Test Site, Soviet nuclear development, the October 1962 Cuban Missile Crisis, and leading to the eventual collapse of the Soviet Union. This also includes the Palomares exhibition, an extensive accounting of the January 17, 1966 Palomares B-52 crash – a mid-air collision between two USAF aircraft (a B-52 bomber and a KC-135 tanker) over Palomares, Almería, resulting in radioactive contamination following the accidental dropping of four hydrogen bombs. Heritage Park —This 9-acre outdoor exhibit is complete with planes, rockets, missiles, cannons, and a nuclear submarine sail. Nuclear Medicine — A display of early and modern medical equipment using nuclear physics principles. Little Albert's Lab — An area presided over by an animatronic version of Albert Einstein, provides hands-on, family-friendly science activities for children. Nano — An