The astronomical mystery of Transient Luminous Events – TLEs, that are usually invisible to the naked eye because they happen on millisecond timescales, too fast to be seen, are now explained by high-tech photography. Have a look at the video…
Transient Luminous Events – TLE or Sprites, because they’re so fast were impossible to catch on film. They occur at the altitude of 50 to 100 kilometers and they emit a crackling “ping” on the radio. Pilots had reported mysterious bright flashes all over the world.
Thomas Ashcraft a photographer and amateur astronomer who has captured a lot of Sprites, said:
“One of the neatest things about TLEs is that first image in 1989 was just a serendipitous capture.”
Ashcraft is grouping the Sprites into categories: jellyfish, carrots, column-forms, and “Elves,” a separate type of sprite caused by nitrogen molecules.
source Wired Science
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