Castle Bravo, the largest thermonuclear device ever detonated by the United States. The test was part of a larger operation for testing high-yield nuclear devices, known as Operation Castle, conducted by the U.S. Atomic Energy Commission and Department of Defense. The operation took place at Bikini Atoll, part of the Marshall Islands, used by the U.S. military beginning in 1946 for nuclear weapons testing research. While the test advanced thermonuclear weapons design, miscalculations about the y

Explosion at Valero Refinery in Texas City