During the Cold War, the US produced hundreds of plutonium pits each year at the Rocky Flats Plant in Colorado. However, ...

The history of other countries’ weapons programs shows that Tehran could complete and deploy a missile-deliverable warhead in ...

The United States is modernizing its nuclear weapons arsenal due to increasing threats from countries like Russia, China, ...

SANTA FE, N.M. (AP) — The National Nuclear Security Administration failed to properly evaluate its expansion of plutonium pit production at sites in South Carolina and New Mexico in violation of ...

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 ...

Sellafield’s reactor was shut down in 2003, but nuclear materials are still stored and plutonium is handled at the site, including a range of facilities for waste storage and processing.

A U.S. Judge has ruled that the National Nuclear Security Administration failed to properly evaluate its expansion of ...

As announced by the U.S. Department of Energy's National Nuclear Security Administration (NNSA), the First Production Unit ...

On October 1, 2024, the U.S. Department of Energy's National Nuclear Security Administration (NNSA) verified completion of the First Production Unit ...

U.S. Department of Energy’s National Nuclear Security Administration (NNSA) on Monday verified completion of the First Production Unit (FPU) of a plutonium pit for the W87-1 Modification Program. A ...