Nearby cities remain worried about plutonium at a former nuclear weapons plant that's now a wildlife refuge open for outdoor ...

For the first time in 35 years, the US National Nuclear Security Administration (NNSA) has manufactured a plutonium pit for ...

During its 40-year run, Rocky Flats’ five plutonium-processing and fabrication facilities and two major uranium facilities created a stew of contaminants, some of which leaked into the ground or ...

A federal lawsuit filed Monday aims to halt the Rocky Mountain Greenway project over concerns the trail would be built on “heavily contaminated portions” of the former Rocky Flats nuclear ...

South Carolina District Court Judge Mary Geiger Lewis sided with environmental, anti-nuclear proliferation and community ...

This is in fact a significant development: The United States has not made plutonium pits in any large quantity since 1989, when pit production at the Rocky Flats plant was halted. Even though Los ...

In a major decision whose consequences are still being assessed, a federal judge declared that plutonium pit production — one ...

Nuclear weapons are scarcely mentioned in the U.S. 2024 political campaign nor in campaign media coverage. These costly and ...