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The Sun lets fly a pulsing X-class flare

Blog post with LOTS more info: http://blogs.discovermagazine.com/badastronomy/2012/01/28/the-suns-still-blasting-out-flares-big-ones/On January 27, 2012, the Sun erupted in the biggest flare of the year so far, an X2-class. It was twice the power of the flare earlier in the week, but on the edge of the Sun so it wasn't aimed at us. We're in no danger, but it makes for a pretty awesome light show. Credit: NASA/SDO/helioviewer.org
Length: 00:38

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