Posted by Bill on 1/24/2012, 9:34 am
The sun has unleashed a blast in Earth's direction, and that should cause brighter-than-normal auroral displays this weekend. Skywatchers won't be the only ones monitoring the storm: The folks in charge of power grids and orbiting satellites will also be on guard to make sure the disturbance in the (geomagnetic) force won't be disruptive.
M-class flares are capable of causing brief radio blackouts near the poles as well as minor radiation storms, but it's unlikely that this one will disrupt communication or power transmission networks. The forecast would be different if it were an X-class storm heading our way. As the sun approaches the peak of its 11-year activity cycle in 2013 or so, we can expect to see more powerful solar outbursts.
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