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kiggs
published 206 days, 22 hours, 50 minutes ago, posted by admin 209 days, 8 hours, 53 minutes ago
On January 4, a reversed-polarity sunspot appeared, signalling the start of Solar Cycle 24. Solar activity waxes and wanes in 11-year cycles and the previous solar cycle, Solar Cycle 23, peaked in 2000-2002 with many furious solar storms.
category: Science
tags: Space
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