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, ...

140 tonnes of plutonium is currently being stored at Sellafield, the nuclear site in Cumbria The government says it will dispose of its 140 tonnes of radioactive plutonium - currently stored at a ...

Research conducted by the Institute of Nuclear Physics of the Polish Academy of Sciences has detected radioactive plutonium on glaciers, report WP. This discovery could have significant ...