Sunspot AR3664 blasted an X2.9-class solar flare recently. This active region on the sun was responsible for a bevy of powerful flares and a massive solar storm that created the aurora show that captivated Earth.
It is now rotating back into view of NASA's Solar Dynamics Observatory.
Credit: Space.com | footage courtesy: NASA / SDO and the AIA, EVE, and HMI science teams / HelioViewer | edited by Steve Spaleta
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