This section provides an overview of the history of the Manhattan Project, the key organizations involved, the science behind the bomb, and more.
In the 1930s, scientists observed and explained nuclear fission--splitting an atom--for the first time.
The Nuclear Non-Proliferation Treaty (NPT) is a comprehensive international arms control agreement addressing both horizontal and vertical nuclear proliferation.
One of the Manhattan Project’s many legacies is the development of peaceful nuclear reactors.
The unprecedented use of nuclear weapons in World War II served as the starting point for an ongoing era of nuclear proliferation.
A nuclear reactor is a device that initiates, moderates, and controls the output of a nuclear chain reaction.
This article discusses Nuclear Weapon Free Zones and other denuclearization agreements.
This article summarizes multilateral and bilateral nuclear weapon test ban treaties.
Operation Crossroads was a series of nuclear weapons tests conducted by the United States at Bikini Atoll in the Marshall Islands in 1946.
Operation Plumbbob was a series of 29 nuclear tests conducted by the U.S. military between May 28 and October 7, 1957, at the Nevada Test Site.