Lightning on Earth is sparked by a powerful chain reaction from outer space
The energy needed for thunderstorms could come from an avalanche of electrons seeded by extraterrestrial cosmic rays , a new study claims. Scientists already knew that lightning is an electrical discharge between thunderclouds and Earth's surface, but exactly how storm clouds obtain an electric field powerful enough to hurl a bolt has remained a mystery for centuries. Now, a new study has used computer models to reveal that lightning strikes as the result of a powerful chain reaction that begi