SPACE LIGHTNING OVER EUROPE: Red sprites (a.k.a. "space lightning") are dancing over thunderstorms in Europe. A dedicated observatory spotted the eerie red forms shooting up toward the Pleiades on April 4th, marking an unusually early start to the northern summer season for sprites. Today's edition of Spaceweather.com explores the possibility that this development is related to recent increases in galactic cosmic rays.
Above: Red sprites leap up from a thunderstorm near the German-Czech border on April 4, 2018. Image credit: Martin Popek of Nýdek, Czech republic. Browse our Realtime Sprite Photo Gallery for more.
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