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Contact: Susan Hendrix
NASA/Goddard Space Flight Center

NASA's SDO Observes Fast-Growing Sun Spot

Caption: The bottom two black spots on the sun, known as sunspots, appeared quickly over the course of Feb. 19-20, 2013. These two sunspots are part of the same system and are over six Earths across. This image combines images from two instruments on NASA's Solar Dynamics Observatory (SDO): the Helioseismic and Magnetic Imager, which takes pictures in visible light that show sunspots and the Advanced Imaging Assembly, which took an image in the 304 Angstrom wavelength showing the lower atmosphere of the sun, which is colorized in red.

Credit: NASA/SDO/AIA/HMI/Goddard Space Flight Center

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