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The nuclear weapons tests of the United States were performed from 1945 to 1992 as part of the nuclear arms race. The United States conducted around 1,054 nuclear tests by official count, including 216 atmospheric, underwater, and space tests. Most of the tests took place at the Nevada Test Site (NNSS/NTS) and the Pacific Proving Grounds in the ...
United States; Nuclear program start date: 21 October 1939: First nuclear weapon test: 16 July 1945: First thermonuclear weapon test: 1 November 1952: Last nuclear test: 23 September 1992: Largest yield test: 15 Mt (63 PJ) (1 March 1954) Total tests: 1,054 detonations: Peak stockpile: 31,255 warheads (1967) Current stockpile: 3,708 (2023 ...
- 16 July 1945
- 23 September 1992
- 1 November 1952
- 21 October 1939
Sep 23, 2018 · The last US nuclear weapons test took place on Sept. 23, 1992, at the Nevada Test Site. It was the 1,030th such experiment, the most conducted by any country since the first US atom...
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First nuclear test: July 16, 1945 Most recent nuclear test: Sept. 23, 1992 Total tests: 1,030 (815 underground) The United States has conducted more tests than the rest of the world, and was the first and only country to use a nuclear weapon in wartime. The U.S. has signed the Comprehensive Test Ban Treaty, but it has not yet been ratified by the S...
First nuclear test: Aug. 29, 1949 Most recent nuclear test: Oct. 24, 1990 Total tests: 715 (496 underground) Russia was the second nation in the world to conduct nuclear tests.
First nuclear test: Oct. 3, 1952 Most recent nuclear test: Nov. 26, 1991 Total tests: 45 (24 underground) Britain tested its first nuclear weapon on Monte Bello Islands, Australia. Atmospheric tests were carried out there until 1956. Britain has ratified the Comprehensive Test Ban Treaty.
First nuclear test: Feb. 13, 1960 Most recent nuclear test: Jan. 27, 1996 Total tests: 210 (160 underground) France conducted six controversial tests as recently as 1995-1996.
First nuclear test: Oct. 16, 1964 Most recent nuclear test: July 29, 1996 Total tests: 43 (22 underground) China is widely thought to be helping Pakistan with its nuclear efforts.
First nuclear test: May 18, 1974 Most recent nuclear test: May 13, 1998 Total tests: 7 In 1966, India declared it could produce nuclear weapons within 18 months. Eight years later, India tested a device of up to 15 kilotons and called the test a "peaceful nuclear explosion." In May 1998, India stunned the world when it conducted two underground nuc...
First nuclear test: May 28, 1998 Most recent nuclear test: May 30, 1998 Total tests: 6 In 1972, following its third war with India, Pakistan secretly decided to start a nuclear weapons program to match India's developing capability. Pakistan responded to India's nuclear tests in 1998 by announcing it exploded an underground device in the Chagai reg...
First nuclear test: Oct. 9, 2006 Most recent nuclear test: Sept. 3, 2017. Total tests: 3 On October 9, 2006 North Korea announced they had conducted a nuclear test. It is assumed this test was actually a fizzle. A second test was conducted on May 25, 2009. This test appeared to be successful. A third test was conducted on February 12, 2013. Sources...
Jul 16, 2020 · And fairly quickly, in fact.”. The US conducted its last explosive nuclear test in September, 1992. Today, the nation’s nuclear weapons research is focused on reliability testing and ...
Sep 20, 2012 · On September 23, 1992, under the surface of the Nevada Test Site, the United States conducted its 1,030th--and last--nuclear weapon test explosion. At the time, there were serious questions about whether the United States could indefinitely extend the service lives of its nuclear warheads without regular nuclear testing.
Sep 22, 2022 · The U.S. carried out its last weapons test on September 23, 1992, with the detonation in Nevada of an approximately 20-kiloton device codenamed Divider. (A kiloton is equivalent to a thousand...
