Time-lapse of a particularly intense aurora borealis display

Göran Strand created this stunning time-lapse video made from photographs of the aurora borealis as seen from Östersund, Sweden on March 17, 2013.

How big are solar flares, really?

Mmmmmmm, delicious context. When the news says "massive," this is what they mean.

Thanks to Scott Stevenson for making this and sending it my way!

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