The blast is what people imagine. A sudden flash, a rising cloud, the moment when history splits into “before” and “after”.

The United States Nuclear Regulatory Commission (USNRC) defines it as the process of radiation attenuation achieved by placing an absorbent substance between an individual, a workspace, or a radiation ...

Radioactive material supports many activities that improve lives around the world. Only a limited number of specialized facilities produce these materials, so safe and secure tran ...

Sierra Army Depot employees were recently honored for their exceptional work in processing and disposing of legacy radiation waste items.

Coloradans are subjected to, on average, four times more naturally occurring radiation than the average American. It is the price of living in a mountainous and geologically rich region, but the full ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. “What is radium and why is it dangerous?” – ...