Pulsating auroras are a visible manifestation of modulation in the fluxes of magnetospheric electrons precipitating into the Earth’s ionosphere. The video shot by Vetter shows real-time — not time-lapsed — pusations of the aurora, which themselves are caused by energetic particles that are spewed out from the sun and then interact with Earth’s atmosphere, resulting in the lights. From the breaking news you need to know to the hottest trends circling the Web, TheBlaze has it all.

His footage was posted a couple of weeks ago, but it shows an event that took place on March 22. This auroral phenomenon has been studied for a long time but the question of its generation is still more or less open. It is widely believed that whistler waves play an important role in the generation of pulsations. Various theories of pulsating auroras are based on the wave-particle interaction between VLF waves and electrons in the equatorial region of the magnetosphere.


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