Actinides are a group of heavy, radioactive elements that include uranium, plutonium, americium, curium, berkelium and ...

This element is one of many first made at UC Berkeley in the 1950s. Unlike most manufactured elements, though, this one is actually useful. This is how it starts up nuclear reactions. Researchers ...

Storing radioactive waste poses a problem for nuclear power facilities worldwide and often leads to heated debates over the pitfalls of nuclear energy production. Pictured, environmental activists ...