Red sprites and blue jets are both atmospheric and electrical phenomena that take place in the upper atmosphere. They take place above normal lightning; Blue jets happen in cone shapes above thunderstorm clouds, and are not related to lightning.
Red sprites are formed by the discharges of positive lightning between an underlying thundercloud and the ground. This image, taken over Oklahoma, by Paul Smith on October is one of the best we've ever seen! 📷: Dramatic sky photography by Paul Smith
The image above, captured by Expedition 31 astronauts aboard the International Space Station (ISS), shows an enigmatic atmospheric phenomenon known as a red sprite hovering just above a bright flash of lightning in a thunderstorm over Myanmar.
Magic in the Skies: The Real Sprites, Elves, and Trolls