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Watch A Sunspot Grow [hd video]

A small sunspot group, AR1416, quickly mushroomed into a substantial sunspot group in less than 2.5 days (Feb. 9-11, 2012). For a rough size comparison, the larger, more developed spots are larger than Earth.

 

Credit: NASA/SDO/HMI

 

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NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.

 

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Uploaded on February 23, 2012