Radon is the radioactive gas that forms as a decay product of radium, a radioactive mineral. Radium, in turn, comes from the decay of uranium. Both are ubiquitously present throughout the Earth’s ...

Radon, the all-natural radioactive gas, is on the news radar again. Radon is gas, coming up through the soil from the natural decay of radium. It can cause lung cancer if enough is breathed in over ...