X3.4! Big sunspot blasts another major flare on way out 

Sunspot AR3664 is almost completely out of view but continues to deliver fireworks. The latest blast comes in as an X3.48-class solar flare.
NASA's Solar Dynamics Observatory captured footage of it in multiple wavelengths. The sunspot is no longer facing Earth, according to Spaceweather.com.
Credit: Space.com | footage courtesy: NASA / SDO and the AIA, EVE, and HMI science teams / helioviewer.org | edited by [Steve Spaleta]( / stevespaleta )

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