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The satellite reported a double flash potentially characteristic of an atmospheric nuclear explosion of two to three kilotons, in the Indian Ocean [10] between the Crozet Islands (a sparsely inhabited French possession) and the Prince Edward Islands (which belong to South Africa) at
An underwater explosion (also known as an UNDEX) is a chemical or nuclear explosion that occurs under the surface of a body of water. While useful in anti-ship and submarine warfare, underwater bombs are not as effective against coastal facilities.
The explosion released roughly 10 29 electrons into the Earth's magnetosphere. [12] While some of the energetic beta particles followed the Earth's magnetic field and illuminated the sky, other high-energy electrons became trapped and formed radiation belts around the Earth.
Photograph of the Starfish Prime high-altitude nuclear test explosion in course of Operation Dominic on July 9, 1962. (US Govt. Defense Threat Reduction Agency/Wikimedia Commons) On the night of ...
The United States conducted around 1,054 nuclear tests by official count, including 216 atmospheric, underwater, and space tests. [1] [notes 1] Most of the tests took place at the Nevada Test Site (NNSS/NTS) and the Pacific Proving Grounds in the Marshall Islands and off Kiritimati Island in the Pacific, plus three in the Atlantic Ocean.
The detonation produced a crater 1.9 km (6,200 ft) in diameter and 50 m (160 ft) deep where Elugelab had once been; [9] the blast and water waves from the explosion (some waves up to 6.1 m (20 ft) high) stripped the test islands clean of vegetation, as observed by a helicopter survey within 60 minutes after the test, by which time the mushroom ...
Video of the test—12 second intro. Operation Wigwam [1] involved a single test of the Mark 90 "Betty" nuclear bomb.It was conducted between Operation Teapot and Project 56 on May 14, 1955, about 500 miles (800 km) southwest of San Diego, California. 6,800 personnel aboard 30 ships were involved in Wigwam.
The non-nuclear explosives in two of the weapons detonated upon impact with the ground, causing the dispersal of radioactive plutonium, which contaminated a 0.77-square-mile (2 km 2) area. The fourth, which fell into the Mediterranean Sea , was recovered intact after a search lasting two and a half months.