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December : 2010
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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 Harrisburg — Dec 15, 2010

Dec 15, 2010 Harrisburg

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