The Sun will be at its most explosive right around the time NASA plans to put people back on the Moon.

Sudden changes in space weather, such as solar flares, for example, could have significant health implications for crew and passengers.

Radiation from the Chornobyl nuclear disaster hasn't damaged the genomes of worms living there today. The resilience could clarify human risk.

What if plants in the area surrounding a nuclear reactor could act as radiation detectors, with the help of a drone?

Radiotherapy takes many forms: from directing powerful high-energy beams toward specific areas of the body to placing radioactive seeds right next to tumors.

Low-dose radiation therapy appears to improve heart function in various forms of heart failure, a new study shows.

Japan has undertaken extensive efforts to decontaminate land in Fukushima – whether they were they right to do so is a complex question.

Space can damage everything from your cardiovascular and nervous systems to your mental health – long voyages can feel isolating for many.

Some geoengineering techniques are better understood than others. The US is investing in capturing carbon dioxide from the air, but ideas to block the Sun’s rays are raising big concerns.

A new study finds a link between long-term, low-dose radiation exposure and a higher risk of cancer. That matters for patients and workers.