Ultraviolet radiation from the sun and artificial sources can penetrate skin cells and damage DNA. Over time, this damage ...

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 ...

The abscopal effect is a rare phenomenon in which shrinking a tumor in one part of your body also shrinks untreated tumors elsewhere in your body. Using immunotherapy with radiation may increase the ...

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 ...

Radiation therapy (also called radiotherapy) uses high-energy beams or subatomic particles to damage the DNA inside prostate cancer cells. After enough damage, the cells cannot multiply, and they die.