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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 ...

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.

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 ...

Plutonium-rich samples from Acid Canyon, Los Alamos. Credit: Michael Ketterer. A new study has revealed alarming levels of plutonium contamination near Los Alamos, New Mexico, the site where the ...

The National Nuclear Security Administration failed to properly evaluate its expansion of plutonium pit production at sites ...

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

NDA officials are said to lean in favour of burying the plutonium deep under the sea, permanently locking it away safely in a ...

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 ...

The outfit that runs Britain's Sellafield nuclear waste processing and decommissioning site has been fined £332,500 ($440,000 ...