Opinions differ on whether the half ton of weapons-grade plutonium secretly shipped by the U.S. government to the Nevada National Security Site could impact residents’ health and the environment.

Washington’s gamble on metallic fast reactors could turn bomb metal into centuries of power. In October 2025, the US Department of Energy launched an unprecedented offer: 19.7 tons of surplus ...

The U.S. Department of Energy says it will pay South Carolina $600 million for the government’s failure to remove bomb-grade plutonium from a nuclear weapons complex that was stuck with the material ...

The two lawmakers questioned the necessity of the nuclear weapons agency's plutonium pit strategy in a letter exclusively ...

Thorium reactors have long been proposed as a cleaner, safer alternative to conventional nuclear energy, and now a new Russian study has added another potential benefit to the mix. Scientists from ...

The nuclear age is undergoing a paradigm shift. During much of the latter half of the past century, the nuclear enterprise was ascendant; now, it has entered a period of decline and uncertain ...

China is building two advanced nuclear reactors with Russian assistance that will produce plutonium for Beijing’s rapid buildup of nuclear weapons, according to a new Air Force think tank study. The ...

Today in jeepers: There's a speck of weapons-grade plutonium missing in Idaho. According to a Nuclear Regulatory Commission (NRC) statement, 1 gram (0.04 ounces) of plutonium-239 — about the weight of ...

In the early decades of the atomic age, using the enormous energy in plutonium atoms for the peaceful generation of electricity became a multibillion-dollar quest that shaped US energy research and ...

LANL Deputy Director for Science, Technology and Engineering Pat Fitch cuts the ribbon at a recent celebration of the PluS ...

Two security experts from the Department of Energy’s Idaho National Laboratory drove to San Antonio, Texas, in March 2017 with a sensitive mission: to retrieve dangerous nuclear materials from a ...