How do we power missions in the outer reaches of our solar system and beyond? The solution, developed in the '60s, can last ...

When the plutonium-238, which starts with 94 protons, releases an alpha particle, it loses two protons and turns into uranium-234, which has 92 protons. These alpha particles interact with and ...

The US Department of Justice (DOJ) announced in January that a Japanese national had pleaded guilty to the attempted trafficking of nuclear materials, including uranium, thorium and plutonium, from ...