Watch: Solar storms spur huge auroras
Solar storms have created some stunning aurora borealis displays in recent weeks. This four-minute film from Norway is one of the best so far.
Tue, Mar 13 2012 at 4:33 PM
The Earth has been under a barrage of solar storms lately, thanks to an 11-year sunspot cycle that's expected to peak sometime in 2013. These outbursts hit a fever pitch last week, when two X-class solar flares
— comprising the biggest solar storm in five years — erupted from the sun. They didn't trigger a mass failure of satellites and power grids
as some experts feared, but they did make their presence known: The onslaught sparked vivid aurora displays across the planet's polar regions.
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