The most radioactive elements found on Earth include Polonium, Radium, and Radon. Learn why elements with short half-lives, ...

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 ...

Scientists have revealed key properties of radioactive promethium, a rare earth element with poorly understood applications, using a groundbreaking new method. When you purchase through links on our ...

Researchers grew crystals containing actinium and illuminated them with X-rays to learn how the radioactive metal binds with other elements. That information could help design better cancer treatments ...

HELENA — Radioactive elements have been detected in all of the 128 residential wells that were tested in a recent seven-county study in south-central Montana, with 49 wells -- 29 percent of those ...

Nuclear waste. We've all heard about it, but what is it? Is it a problem without a solution? How big is the problem? And what exactly is this waste and why is it so important? New Atlas takes a look ...