Alien signal or atmospheric mystery? NASA reveals truth behind red ‘jellyfish’ lights and sprites over Earth

Mysterious red lights falling from space, initially thought to be alien signals, have been identified by scientists as red sprites. These rare upper-atmosphere lightning phenomena occur high above thunderstorms, appearing as upward-traveling pillars or jellyfish-shaped glows. Captured by citizen scientists and astronauts, these striking electrical events are triggered by powerful ground lightning strikes.