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 ...

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 ...

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 ...