High-altitude lightning bursts called “sprites,” which are difficult to see with the human eye, explode in a burst of red above the more easily seen white flashes of a powerful thunderstorm over ...

A flash of red light danced above Earth’s clouds, catching the eye of a passing astronaut. From her window aboard the International Space Station, Nichole “Vapour” Ayers snapped an image that is now ...

Sprites are spectacular optical emissions in the mesosphere induced by transient lightning electric fields above thunderstorms. Although the streamer nature of sprites has been generally accepted, how ...