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The Tsar Bomba is the single most physically powerful device ever deployed on Earth, the most powerful nuclear bomb tested and the largest human-made explosion in history. [64] For comparison, the largest weapon ever produced by the US, the now-decommissioned B41 , had a predicted maximum yield of 25 Mt (100 PJ).
The table in this section summarizes all worldwide nuclear testing (including the two bombs dropped in combat which were not tests). The country names are links to summary articles for each country, which may in turn be used to drill down to test series articles which contain details on every known nuclear explosion and test.
Hardtack Teak, 1958 Frame of the Starfish Prime nuclear test. High-altitude nuclear explosions are the result of nuclear weapons testing within the upper layers of the Earth's atmosphere and in outer space. Several such tests were performed at high altitudes by the United States and the Soviet Union between 1958 and 1962.
Starfish Prime was a high-altitude nuclear test conducted by the United States, a joint effort of the Atomic Energy Commission (AEC) and the Defense Atomic Support Agency. It was launched from Johnston Atoll on July 9, 1962, and was the largest nuclear test conducted in outer space, and one of five conducted by the US in space.
Nuclear test detection experiments are designed to improve the capabilities to detect, locate, and identify nuclear detonations, in particular, to monitor compliance with test-ban treaties. In the United States these tests are associated with Operation Vela Uniform before the Comprehensive Test Ban Treaty stopped all nuclear testing among ...
China developed its first nuclear weapon in 1964; its nuclear stockpile increased until the early 1980s, when it stabilized at between 200 and 260. [1] India became a nuclear power in 1974, while Pakistan developed its first nuclear weapon in the 1980s. [1] [21] India and Pakistan currently have around one hundred nuclear weapons each. [19]
Lake Chagan or Lake Shagan, [6] also known as Balapan, is a lake created at the confluence of rivers Shagan and Ashchysu by the Chagan nuclear test roughly 10,000,000 m 3 (8,100 acre⋅ft) in size, is still radioactive, and has been called the "Atomic Lake".
The various facilities grouped inside the Semipalatinsk Test Site Crater from a nuclear test Igor Kurchatov's radio and a portrait of Vladimir Lenin, found at the old test site. The site was selected in 1947 by Lavrentiy Beria, political head of the Soviet atomic bomb project. Beria claimed the vast 18,000 km² steppe was "uninhabited".