Lightning Bolts Create Glowing Auroral ‘Elves’ and Brilliant Gamma-Ray Flashes

Dark fluffy thunderclouds don’t just fuel dramatic storms, they also produce some of the most energetic flashes of light on the planet — and brilliant sky displays known as ultrasonic “elves.” Now, new findings have painted a clearer picture of what’s going on in the silent interludes of a stormy sky. For a long time, […]