Violent solar events, like flares and coronal mass ejections, are the hurricanes of space weather, capable of causing havoc with satellites, power grids, and radio communication, including the Global Positioning System. The sun is heading into a new season of turbulent solar activity. Just like its seasonal hurricane predictions, on April 25, 2007, the National Oceanic and Atmospheric Administration (NOAA) will issue an update on efforts to predict the sun's next solar cycle.
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