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 evidenc ...