What are red sprites?

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Red sprites are large-scale electrical discharges that occur high in the mesosphere, typically between 50 to 90 kilometers above thunderstorms. They appear as red-orange flashes with tendrils below and can be triggered by positive lightning strikes. Sprites last only milliseconds, making them challenging to observe. They are part of a broader category known as Transient Luminous Events (TLEs), alongside phenomena like blue jets and ELVES, which are also associated with thunderstorms.

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