Castle Bravo is the sixth largest nuclear explosion in history, exceeded by the Soviet tests of Tsar Bomba at approximately 50 Mt, Test 219 at 24.2 Mt, and three other (Test 147, Test 173 and Test 174) ≈20 Mt Soviet tests in 1962 at Novaya Zemlya.

Washington, D.C., February 29, 2024 - Seventy years ago, on 1 March 1954 (28 February in Washington), the U.S. government detonated a thermonuclear weapon, code-named “Shrimp,” on Bikini Atoll in the Marshall Islands in what turned out to be the largest nuclear test in U.S. history.

On March 1, 1954, the United States carried out its largest nuclear detonation, “Castle Bravo,” at Bikini Atoll in the Marshall Islands. The Bravo shot was the first test of Operation Castle, a series of thermonuclear tests.

Aug 16, 2018 · Code named Castle Bravo, this first test of the Operation Castle test series was 1,000 times more powerful than either of the atomic bombs the US dropped on Hiroshima and Nagasaki in World War Two. Within a second of detonation Bravo formed a 4.5-mile-high fireball.

The most notable event of Operation Castle was the Castle Bravo test. The dry fuel for Bravo was 40% Li-6 and 60% Li-7. Only the Li-6 was expected to breed tritium for the deuterium-tritium fusion reaction; the Li-7 was expected to be inert.

Feb 27, 2014 · Scientists were shocked when Castle Bravo produced an astounding 15 megaton yield, making it 1,000 times as powerful as the U.S. nuclear weapons used on Hiroshima and Nagasaki in 1945.

Sep 25, 2020 · More than 60 years ago on an island in the South Pacific, scientists and military officers, fishermen and Marshall Islands natives observed first-hand what Armageddon would be like. And it almost...

Mar 8, 2023 · The Castle Bravo test was a nuclear weapons experiment that went disastrously wrong, unleashing a destructive force that dwarfed all earlier nuclear explosions. Conducted by the United States on March 1, 1954, at Bikini Atoll in the Marshall Islands, the test was part of a bold and dangerous effort to develop and refine America’s nuclear ...

The Castle Bravo test, conducted on March 1, 1954, at Bikini Atoll, was 1,000 times the force of the Hiroshima bomb. The explosion sent irradiated coral dust throughout the atolls.

Feb 28, 2014 · The 15-megaton Castle BRAVO nuclear test, 1 March 1954, created a crater a mile wide and spread radioactive fallout around the world. The mushroom cloud rose to 130,000 feet and broadened to more than 25 miles in diameter.