PERTH, Australia -- The health effects of coming into contact with a radioactive capsule no bigger than a coin that was lost in Western Australia -- and has since been found -- could potentially be ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. MOKOPANE, South Africa (AP) — A South ...

In this lesson, students will investigate the nature of radioactivity and the effect of both distance and shielding materials on different radioactive sources using a Geiger-Muller tube with a counter ...

Contaminated metal at an industrial site in Indonesia may be the source of radioactive material that led to massive recalls of imported frozen shrimp, international nuclear safety officials say, as ...

A New Science. The beginnings. The setting ; Rays and radiation ; Becquerel's discovery -- The Curies. Maria Skłodowska ; A consequential meeting ; New elements! -- Rutherford, Soddy, particles, and ...