The results cannot be extrapolated to humans, researchers caution.

Famed for his work on black holes and cosmology, he also survived decades with amyotrophic lateral sclerosis.

Exposing male rats to nonionizing radiation increased the animals’ risk of brain and heart tumors in a study, but the findings are far from conclusive.

Scientists make oxygen-filled microbubbles designed to increase tumor sensitivity to radiation.

Wild primates living near the site of 2011’s tsunami-spawned nuclear disaster are showing physiological signs of radiation exposure.

A hydroxylase inhibitor that prolongs the action of a gut-protective protein shows promise in mice as a treatment for radiation poisoning.

Cranial irradiation, a common brain cancer treatment, disrupts neural morphology in mice in ways that resemble damage caused by neurodegenerative conditions.

An instrument aboard the spaceship that carried Curiosity to Mars has found that deep space travelers would face worrying levels of radiation.

A study suggests that increased UVB radiation from the sun is behind the decline of many marine species.