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.

Nuclear weapons haven’t been tested in the United States since 1992. Find out why, and what could happen if the hiatus ends.

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 ...

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 ...

The United States is preparing to mine a rare nuclear resource from some of its most dangerous Cold War legacies, turning ...

The Department of Energy’s National Nuclear Security Administration recently retracted its intention to publish a draft environmental report for public comment about increasing the amount of fissile ...

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 ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. When the United States broke off cease-fire talks with Russia over ...

The skin of two workers in Los Alamos National Laboratory’s plutonium facility were contaminated in late November, according ...

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 ...

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 ...