When our planet and the incoming sunlight align just right, stunning phenomena such as rainbows and halos can occur. More often, sunlight—or shortwave radiation—interacts with the Earth in subtle but ...

An IAEA research project involving 27 countries has strengthened global understanding of how exposure to ionizing radiation affects human health. The project focused on the clinical applications of ...

An investigation by Howard Center for Investigative Journalism at Arizona State University and Scripps News reveals how the FAA fails to protect most who fly for a living from a known health hazard.

Doctors may use radiation therapy to treat benign tumors. Radiation can shrink and eliminate benign growths without doctors having to perform surgery. Benign tumors are noncancerous growths that can ...

There are several different types of radiation therapy. The type that may be recommended for you depends on a variety of factors, such as your cancer, its stage, and your treatment goals. Radiation ...