Massive eruption on sun hurls coronal mass ejection toward Earth, auroras likely Sept. 19 (video)

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A giant solar tendril, known as a solar filament, lashed out from the sun on Saturday (Sept. 16) catapulting a super-hot plasma eruption known as a coronal mass ejection (CME) toward Earth. 

The U.S. National Oceanic and Atmospheric Administration (NOAA) has issued a G2-class moderate geomagnetic storm watch as it keeps an eye on the Earth-directed portion of the CME expected to hit on Sept. 19. 

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