Beginning in the late 1950s, the U.S. met this challenge by developing nuclear batteries known as radioisotope thermoelectric generators (RTGs) and producing plutonium-238 (Pu-238) as their fuel, ...

A wildlife corridor plans to connect two Superfund sites at the former Rocky Flats plutonium plant and the Rocky Mountain ...

So, the question remains, where did the “weapons grade plutonium” come from ... At one stage, the RCSS was rumoured to be mining uranium for sale to foreigners. Although reportedly cited by the DOJ as ...

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Kim said Ebisawa admitted at his plea that he “brazenly trafficked nuclear material, including weapons-grade plutonium ... group” in Myanmar who had been mining uranium in the country ...