For the first time in 35 years, the US National Nuclear Security Administration (NNSA) has manufactured a plutonium pit for use in a nuclear weapon. Functioning as a radioactive core for nuclear ...

Los Alamos, the Atomic City, is facing a legacy of its nickname. High levels of plutonium present in samples taken in July ...

A new study has revealed alarming levels of plutonium contamination near Los Alamos, New Mexico, the site where the first ...

The component, called a “plutonium pit,” is the radioactive component that acts as a first stage ‘trigger’ apparatus used to initiate the detonation of the thermonuclear device. Plans call for the W87 ...

Two conflicting developments arose this month in US efforts to produce new plutonium pits for its nuclear weapons: The National Nuclear Security Administration (NNSA) announced it had produced a ...

An undated photo capturing the Plutonium Facility at Los Alamos National Laboratory, with the Rio Grande valley and the Sangre de Cristo mountains in the background. (Photo courtesy of Los Alamos ...

Beginning in the late 1950s, the U.S. met this challenge by developing nuclear batteries known as radioisotope thermoelectric generators (RTGs) and producing plutonium-238 (Pu-238) as their fuel, ...

Ed Miliband has been urged to preserve a 140-tonne stockpile of radioactive plutonium instead of burying it as dangerous waste. The material, which is made up of spent fuel from power plants ...

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The Center for Public Integrity (CPI) reports that plutonium and cesium were stolen from the officials' car when they stayed overnight at a hotel. Authorities have not publicly commented on the ...

The component, called a “plutonium pit,” is the radioactive component that acts as a first stage ‘trigger’ apparatus used to initiate the detonation of the thermonuclear device.