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Diary

Jun 1, 2020 The first major spike in solar activity in the new cycle has ended
May 29, 2020 The major spike in solar activity in recent years continues - new largest solar flare has occurred
May 29, 2020 The largest flare in the last three years occured on Sun

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Geomagnetic activity forecast in Philadelphia — Apr 17, 2010

Apr 17, 2010 Philadelphia

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