Red Sprites: The Giant Electrical Jellyfish Flashing Above Thunderstorms

In this episode of pplpod, we explore red sprites, the massive and mysterious electrical discharges that appear high above thunderstorms near the edge of space. These glowing red structures can stretch tens of miles across, forming jellyfish-like shapes, columns, and tendrils in the mesosphere, far above the lightning we usually see from the ground.

This episode traces the strange history of sprite science, from early sightings in the 1800s to the accidental 1989 video capture that finally proved they were real. We examine how powerful positive lightning strikes create enormous electric fields, how thin upper-atmosphere air allows cold plasma to form, and why nitrogen produces the sprites’ eerie red glow.

Key topics covered:

The 1989 NASA balloon incident over Texas
Early sprite sightings and the first video evidence
Jellyfish, column, and carrot sprites
Cold plasma, nitrogen glow, and electric fields
NASA’s Spritacular citizen science project

Ultimately, this episode is about the hidden electrical world above our storms. Red sprites remind us that Earth still holds strange, beautiful, barely visible phenomena happening right above our heads — if we know where, and how, to look.

Source credit: Research for this episode included transcript materials and supporting historical sources accessed 6/9/2026. Content is summarized and adapted for commentary and educational use.

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