First Estimate of Solar Cycle 25 Amplitude – may be the smallest in over 300 years

Guest post by David Archibald Predicting the amplitude of Solar Cycle 24 was a big business. Jan Janssens provides the most complete table of Solar Cycle 24 predictions at: http://users.telenet.be/j.janssens/SC24.html Prediction activity for Solar Cycle 24 seemed to have peaked in 2007. In year before, Dr David Hathaway of NASA made the first general estimate…

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