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 ...

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 ...

Lawrence Livermore National Laboratory recently conducted an experiment on weapons-grade plutonium to assess how resilient a nuclear weapon will prove ...

AIKEN, S.C. (AP) — In a story May 12 about the proposed production of pits at the Savannah River Site in South Carolina, The Associated Press reported erroneously that pits were planned to store ...

After decades of delays, workers at the Hanford nuclear site this October finally began treatment of the 56 million gallons ...

WASHINGTON — The plutonium in nuclear warheads will be reliable for as long as 100 years, twice as long as previously thought, according to a study released Wednesday, raising questions by some ...

Lawrence Livermore National Laboratory (LLNL) has conducted an experiment at the National Ignition Facility (NIF) to assess ...

BEIJING (Reuters) - China said on Monday it was "extremely concerned" by a report that Japan has resisted returning to the United States more than 300 kg (660 lb) of mostly weapons-grade plutonium, ...

The federal government has asked a court to dismiss a lawsuit brought by nuclear policy and community groups that alleges environmental regulations were ducked in pursuit of plans to produce mass ...

Potential expansion appears in line with leader Kim Jong Un’s directive for ‘exponential growth’ of nuclear weapons ...