PRIPYAT, Ukraine — Officials in Ukraine have confirmed that radiation rates at Chernobyl have exceeded “control levels” at a large number of observation points. Russian forces captured the power plant ...

Scientists have recorded the highest levels of radiation from a solar storm at aviation altitude in decades, revealing potential threats to aircraft safety. A flare classified as most intense was ...

Radiation risk can be measured, understood and controlled in ways that keep people safe, including from contaminated foods.

OKUMA, Japan — The Fukushima Daiichi nuclear power plant’s radiation levels have significantly dropped since the cataclysmic meltdown 14 years ago Tuesday. Workers walk around in many areas wearing ...

NORFOLK, Va. — This week, OSHA and the Transportation Security Administration leaders tested radiation levels at Norfolk International Airport. TSA officers wore devices to track radiation levels from ...