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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. [1] [notes 1] Most of the tests took place at the Nevada Test Site (NNSS/NTS) and the Pacific Proving ...
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 bomb was ...
The United States was the first country to manufacture nuclear weapons and is the only country to have used them in combat, with the bombings of Hiroshima and Nagasaki in World War II. Before and during the Cold War, it conducted 1,054 nuclear tests, and tested many long-range nuclear weapons delivery systems.
- Tests by Country
- Known Tests
- Alleged Tests
- Tests of Live Warheads on Rockets
- Most Powerful Tests
- External Links
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. The notes attached to ...
In the following subsections, a selection of significant tests (by no means exhaustive) is listed, representative of the testing effort in each nuclear country.
There have been a number of significant alleged, disputed or unacknowledged accounts of countries testing nuclear explosives. Their status is either not certain or entirely disputed by most mainstream experts.
Missiles and nuclear warheads have usually been tested separately because testing them together is considered highly dangerous; they are certainly the most extreme type of live fire exercise. The only US live test of an operational missile was the following: 1. Frigate Bird: on May 6, 1962, a UGM-27 Polaris A-2 missile with a live 600 kt W47 warhea...
The following is a list of the most powerful nuclear weapon tests. All tests on the first chart were multi-stage thermonuclear weapons.
Video archive of nuclear weapon testing Archived 2012-12-05 at archive.todayDec 1, 2023 · May 10, 1954: The Soviet Union proposes, for the first time by either superpower, a nuclear test ban as the initial step toward nuclear disarmament. 1957: The United Kingdom conducts its first hydrogen bomb test, and the United States and the Soviet Union accelerate testing. These countries conduct 42 above ground nuclear blasts during the year.
On September 23, 1992, the United States conducted Divider, an underground test at the Nevada Test Site.The test, designed and executed by scientists at Los Alamos National Laboratory, was the nation’s 1,054th and final nuclear weapons test before the current testing moratorium, marking the end of an era that began with the Trinity test 47 years prior.
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The history of nuclear testing began early on the morning of 16 July 1945 at a desert test site in Alamogordo, New Mexico when the United States exploded its first atomic bomb. In the five decades ...
