Trinity was the first detonation of a nuclear weapon, conducted by the United States Army at 5:29 a.m. Mountain War Time [a] (11:29:21 GMT) on July 16, 1945, as part of the Manhattan Project.

Oct 3, 2024 · The Hiroshima bombing was the second artificial nuclear explosion in history, after the Trinity test, and the first uranium-based detonation. The bombs exploded at Trinity Site …

Jun 18, 2014 · After three years of research and experimentation, the world’s first nuclear device, the “Gadget,” was successfully detonated in the New Mexico desert. This inaugural test …

Emitting as much energy as 21,000 tons of TNT and creating a fireball that measured roughly 2,000 feet in diameter, the first successful test of an atomic bomb, known as the Trinity Test, …

Jul 16, 2015 · The success of the Trinity test meant that both types of bombs -- the uranium design, untested but thought to be reliable, and the plutonium design, which had just been …

Sep 13, 2025 · The Trinity test was the detonation of the first atomic bomb at 5:29:45 am on July 16, 1945. The bomb, a plutonium implosion device called Gadget, was exploded at the …

Apr 23, 2010 · At 5:30 a.m. on July 16, 1945, Los Alamos scientists detonated a plutonium bomb at a test site located on the U.S. Air Force base at Alamogordo, New Mexico, some 120 miles …

Jul 6, 2020 · This was the Trinity test, the culmination of 27 months of work at Project Y—a secret laboratory in Los Alamos—to create the world’s first atomic bomb. Project Y covertly …

The success of the Trinity test meant that an atomic bomb using plutonium could be readied for use by the U.S. military. The Trinity site is now part of the White Sands Missile Range and is …

Jul 16, 2025 · Scientists set off the Trinity test atomic bomb on July 16, 1945. Though they chose a somewhat secluded area of the desert, people lived less than 20 miles away. It was …