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Birthday · November 11, 1995

Red Sprite Lightning

November 11, 1995

On this day, the universe repeated one of its rarest tricks: it arranged dust, light, memory, and possibility into a person no equation...

Red Sprite Lightning

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APOD published November 11, 1995. Full image credits are on the original APOD entry below. A publication-date match, not a photo taken on your date. Independent of NASA.

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Red Sprite Lightning

Original APOD · November 11, 1995

Recently two new types of lightning have been verified: red sprites and blue jets. These atmospheric discharges occur very high in the Earth's atmosphere - much higher than the familiar form of lightning. Red sprites appear red in color and go from the tops of clouds to as high as the ionosphere - an ionized layer 90 kilometers above the Earth's surface. They last only a small fraction of a second. The existence of red sprites has been suggested previously, but only in 1994 were aircraft flown above massive thunderstorms with the high speed video equipment necessary to verify these spectacular events. Scientists are unsure of the cause and nature of red sprites.

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