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Diary

Nov 21, 2025 On the disintegration of the 3I/ATLAS object
Nov 20, 2025 The king of prominences has flown away from the Sun
Nov 19, 2025 A new large cloud of solar plasma will hit 3I/ATLAS on Friday, November 21.

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Geomagnetic storms in Helsinki — Dec 31, 2009

Dec 31, 2009 Helsinki

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