15:51Solar Storms Trigger Northern Lights
A blanket of green hangs over the coast of Bø in northern Norway in a picture taken January 6.
In general, auroras have been ramping up over the past year as the sun has approached what's known as solar maximum, a period of more intense activity in our star's natural 11-year cycle.
Scientists predict the sun will reach solar max in 2013, and that we'll continue to see more frequent and intense flares, CMEs, and other eruptions that—when aimed at Earth—might not only supercharge auroras but could also carry risks for airplanes, satellites, and the power grid.
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