Existence of red sprites

 The existence of red sprites, above certain thunderstorms is a little-known phenomenon that is primarily known to meteorologists, nature photographers, and other sky researchers. Although they are not particularly rare, they are ephemeral and difficult to photograph. Lightning sprites, also known as red sprites, are electrical discharges high in Earth's atmosphere that are associated with thunderstorms but are not born in the same clouds that send us rain. Thunderstorms, as well as all earthly weather, occur in the troposphere, a layer of atmosphere that stretches from Earth's surface to between 4 and 12 miles (about 6 and 19 km) up.