WASHINGTON (Reuters) - New commercial satellite imagery indicates North Korea has resumed operation of a reactor at its main nuclear site used to produce plutonium for its nuclear weapons programme, a ...

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 ...

You would think that by now, in discussing the future of Japan's plutonium stockpile, one fact would be incontrovertible: Commercial plutonium — often called reactor-grade plutonium — can be used as ...

WASHINGTON (Reuters) - A suspected Syrian reactor bombed by Israel had the capacity to produce enough nuclear material to fuel one to two weapons a year, CIA Director Michael Hayden said on Monday.

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 ...

WASHINGTON, Oct 22 (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 ...

RUSSIA warned of a "catastrophe" if North Korea restarts an outdated plutonium reactor to boost its stockpile of nuclear weapons. The reactor, which was completed in 1986, is outdated and North Korea ...

NEVADA NATIONAL SECURITY SITE - Advanced nuclear technology company Oklo Inc. (NYSE:OKLO), currently trading at $83.51 with a market capitalization of $13.05 billion, has completed multi-day plutonium ...

TOKYO -- Despite its latest pledge, Japan is expected to have trouble reducing plutonium stockpiles as public mistrust blocks reactor restarts and stalls its nuclear fuel cycle plan.