That production line ceased in 1988, as the Cold War wound down. The U.S. began buying Pu-238 from Russia in 1992 but received its last shipment from Moscow in 2010.

Given the serious cost, scheduling, and scientific questions about the US government's program for producing new plutonium cores (or pits) for nuclear warheads, the authors recommend the program be ...

Your tax dollars are being spent to build seven new nuclear weapons programs simultaneously. But there’s time for public ...

Overseeing the production is the Department of Energy’s National Nuclear Security Administration (NNSA), which is pushing to get Los Alamos whirring to life this year to start making plutonium ...

Nichols moved plutonium production from Oak Ridge to Hanford, Washington. Meeting with DuPont officials and Lt. Col. Franklin Matthias mid-December 1942, they discussed site requirements.

This month marks the 80th anniversary of the Trinity Test, the detonation of a plutonium device known as "the Gadget" in the Southern New Mexico desert. The test, which sent a giant mushroom cloud ...

Production of plutonium pits at the Savannah River Site and Los Alamos National Laboratory remains a top priority of the U.S. Department of Defense and the National Nuclear Security Administration.

Judge finds plutonium production plans violated environmental laws Both sides of the case are ordered to present a joint plan to address violations by Oct. 25 ...

Nichols moved plutonium production from Oak Ridge to Hanford, Washington. Meeting with DuPont officials and Lt. Col. Franklin Matthias mid-December 1942, they discussed site requirements.