Solar physicists say they have found a key source of intense gamma rays unleashed when Earth's nearest star produces its most ...

"WIMPs are still the leading candidate for dark matter, but billions of dollars of experiments have been done, only getting ...

A massive burst of gamma rays produced by the explosion of a star almost two billion light-years away was so powerful that it changed Earth’s atmosphere, according to scientists. Gamma rays are the ...

Above the cloud tops, thunderstorms throb with a complex, frenetic light show of high-energy radiation. A view from a retrofitted spy plane soaring at 20 kilometers up revealed storms glowing and ...