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Are coronal holes permanent? How long do they last? Do the frequency of them give new information as to the lifespan of our sun, and its eventual burn-out however many milleniums from now? Do the coronal holes have any relation to solar flares? ....Are these coronal holes something we need to be worried about? Marc S. Dania fl 18.104.22.168 (talk) 18:40, 30 July 2013 (UTC)