The military wanted to test ... radiation burst from the nuclear warhead was far bigger than expected. The 1.4 megaton explosion created “an artificial radiation belt and raising the intensity ...

Many of us don’t think too much about radiation levels in our area, until a nuclear disaster hits and questions are raised. Radiation monitoring is an important undertaking, both from a public ...

The Department of Energy said Friday low-altitude helicopter flights to measure background radiation will be done over New ...

A drone armed with a warhead hit the outer shell of Ukraine’s Chernobyl nuclear plant, briefly starting a fire, in an attack ...

Radiation at such levels can kill a person if they are exposed for an hour, according to experts. The estimated figure was 30 petabecquerels for the No. 3 reactor.