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

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 ...

Multi-day fast-spectrum reactor experiments at the U.S. Department of Energy’s National Criticality Experiments Research Center generate modern benchmark data. The data supports Oklo’s ...

WASHINGTON (Reuters) -Nuclear waste and radioactive plutonium would be assessed as a fuel for reactors under a draft executive order being considered by the administration of President Donald Trump on ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. WASHINGTON • The plutonium that is the key ingredient in thousands of nuclear weapons sidelined in the new arms control treaty ...

Nuclear start-up Oklo Inc. (OKLO) sits at the center of a policy shift that is transforming surplus plutonium from a Cold War liability into a potential energy asset. Federal direction now favors ...

WASHINGTON (AP) – A recent satellite image appears to show North Korea is restarting a plutonium reactor, in a move that could raise renewed international alarm over its nuclear weapons program, a U.S ...

DUBAI, United Arab Emirates (AP) — Much of the focus on Iran’s nuclear program has been on Tehran’s enrichment of uranium, but experts also keep a close watch on the Islamic Republic’s Arak heavy ...

(Removes reference in paragraph 5 to fuel plants needing Nuclear Regulatory Commission approval, as the plants would be authorized by the Department of Energy) By Timothy Gardner WASHINGTON (Reuters) ...

DUBAI – Much of the focus on Iran's nuclear program has been on Tehran's enrichment of uranium, but experts also keep a close watch on the Islamic Republic's Arak heavy water reactor. That's because ...

This satellite photo from Planet Labs PBC shows the Arak heavy water reaction in Iran on March 20, 2025. (Planet Labs PBC via AP) DUBAI, United Arab Emirates (AP) — Much of the focus on Iran's nuclear ...