This, as he found out, isn’t something you should do lightly, as the one he used ended up containing an interesting mix of radioactive materials, including small amounts of plutonium-239 ...

Robert O'Brien's call to restart nuclear weapons testing was met with resounding criticism from experts, who called it ...

Since the first nuclear explosion in history during the Trinity test in 1945, nuclear weapons have significantly shaped the ...

At the same time, uranium-233, the primary fission material produced from thorium, is harder to use for weapons purposes than uranium-235 or plutonium-239. This means there is less of a risk its ...

Molten Salt Reactors (MSRs) are nuclear fission reactors in which either the fuel and/or the coolant is a molten salt. Molten salt is salt which liquifies at elevated temperatures and can store ...

Isotopes of the two elements-as yet nameless, apparently owing to lack of 'transplutonic' planets-have been produced by bombarding uranium 238 and plutonium 239 with 40 MeV. a-particles in the ...