naturebriefs
8:35in productionCh. 1 · Not lightning/ 8:35 · ceiling 15 min
Systems

Upper-atmospheric lightning

It is not lightning — it is plasma, brief, alien, and happening right now over a storm near you.

Upper-atmospheric lightning is a misnomer. It is transient luminous events: electrically induced plasma, not thermal discharge; observed globally but only with instrumentation; physically real, theoretically consequential, and visually elusive.

Chapters & takeaways4
  1. 0:43
    Not lightning

    TLEs are not lightning — they’re electrically induced plasma, and ‘transient luminous event’ is the correct scientific term.

  2. 2:16
    How sprites fire

    Sprites are large-scale discharges above cumulonimbus clouds, triggered by positive cloud-to-ground lightning.

  3. 3:39
    How blue jets move

    Blue jets blast upward from cloud tops at 100–140 km/s, reaching ~50 km and lasting under 300 ms.

  4. 5:07
    Beyond Earth

    TLEs occur beyond Earth — they’ve been seen in far-ultraviolet images of Jupiter’s upper atmosphere.

Worth your time?

Yes. See the whole thing.

4.5/ 5
What works
  • reveals vertical electrical coupling in Earth’s atmosphere
  • confirms similar processes on Jupiter
  • enables new models of ionosphere–troposphere interaction
What does not
  • behaves like lightning
  • visible to the naked eye under normal conditions
  • thermally significant at surface level
  • predictable in timing or location
See it if
  • atmospheric physicists
  • space-weather researchers
  • high-altitude imaging specialists
Skip it if
  • casual observers without instrumentation
  • educators seeking intuitive analogues
  • conservation practitioners
The written brief1 min read

What the species is and where it came from

Upper-atmospheric lightning is not a species but a collective term for transient luminous events (TLEs): sprites, blue jets, gigantic jets, ELVES, trolls, pixies, ghosts, and gnomes — all short-lived, electrically induced luminous plasma phenomena occurring well above thunderstorms and normal lightning.

How it works, in terms someone would actually use

It is a short-lived electrical-breakdown phenomenon occurring well above thunderstorms and normal lightning — triggered by positive cloud-to-ground discharges in the case of sprites, or erupting upward from cloud tops at 100–140 km/s for blue jets.

What it gets right

It correctly identifies a class of real, globally distributed, electrically induced luminous plasma events — verified from ground, aircraft, space shuttle, and ISS — with distinct morphologies, altitudes, durations, and triggers.

What it does not

It does not behave like tropospheric lightning: it lacks hot plasma channels, sustained current flow, and predictable branching. It is not audible, not thermally significant at ground level, and not detectable without low-light, high-speed imaging.

What it changed

It changed how scientists model energy transfer between troposphere and ionosphere — showing electrical coupling extends far higher than previously confirmed.

Who it is for, and who it is not

It is for atmospheric physicists, space-weather observers, and high-altitude imaging specialists. It is not for casual skywatchers without calibrated low-light cameras, nor for educators needing simple analogues — no TLE has been reliably seen with the naked eye under typical conditions.

Is it worth your time

Yes — if you are equipped to observe from high ground, aircraft, or orbit, and seek phenomena that reveal how Earth’s atmospheric layers couple electrically.

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