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

TOKYO - Last year's tsunami disaster in Japan clouded the nation's nuclear future, idled its reactors and rendered its huge stockpile of plutonium useless for now. So, the industry's plan to produce ...

A portion of "problematic plutonium" has safely been processed into a stable waste form in a UK first, a nuclear disposal group has said. The UK's Nuclear Decommissioning Authority (NDA) said the can ...

WASHINGTON (Reuters) -The Trump administration plans to make available about 20 metric tons of Cold War-era plutonium from dismantled nuclear warheads to U.S. power companies as a potential fuel for ...

WASHINGTON (Reuters) -The U.S. Department of Energy expects to begin announcing by December 31 which companies will take about 19.7 metric tons of surplus Cold War-era plutonium for eventual ...

Aug. 18—Federal officials estimate Los Alamos National Laboratory won't produce 30 nuclear bomb cores until 2030 — four years after the legally required deadline. The additional time needed to produce ...

North Korea appears to be making new nuclear bomb fuel, satellite imagery shows, even as its leader, Kim Jong Un, has expressed willingness to negotiate atomic disarmament with President Donald Trump.

Iran has not tried to convert its nuclear reactor at Arak to produce weapons-grade plutonium, a new report by the International Atomic Energy Agency has found. The Arak heavy water reactor was once ...

The Energy Department is moving to resume production of plutonium-238 as an energy source for spacecraft and some national security activities, because existing supplies will be virtually gone in five ...

An American nuclear weapons expert who recently visited North Korea’s main nuclear complex said Wednesday he saw no convincing evidence that Pyongyang can build a plutonium-based nuclear device, but ...

North Korea has confirmed it has produced "a little bit of plutonium" for experimental use at a secret nuclear facility, the Japanese national television network NHK reported Wednesday. A member of ...