This image from NASA's Solar Dynamics Observatory was captured on Jan. 13, 2013, at 8:13 p.m. EST. At the center sits a large cluster of sunspots, dubbed Active Region 11654, that rotated over the left limb of the sun on Jan. 10. The region has been responsible for a spate of mild space weather and is now about 120,000 miles end-to-end, which equates to around 14 Earths. Credit: NASA/SDO/HMI
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