Is it a bird, a plane, a UFO? It's a... red sprite

Posted by K R on

Is it a bird, is it a plane, is it a UFO? Strange lights in the sky are being closely watched by atmospheric scientists. Dubbed red sprites by researchers, these dancing fairies-of-the-clouds are sometimes glimpsed as blood-red bursts of light in the shape of jellyfish. At other times, they appear as trumpet-shaped blue emissions, called blue jets. Like the most elusive of nymphs, however, red sprites and blue jets come out on only one occasion: during severe thunderstorms. Although sporadically reported for years by airline pilots, only in the past decade or two has there been enough evidence to convince atmospheric scientists to investigate the phenomenon. See details at PHYS.ORG.

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