X-flare on Dec. 20th

Space Weather News for Dec. 20, 2014: http://spaceweather.com

Solar activity is high.  A pair of large sunspots is crossing the center of the solar disk, and both are crackling with flares.  The strongest so far, an X1.8-class flare on Dec. 20th, caused a strong HF radio blackout over the South Pacific and might have hurled a CME toward Earth. 

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