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Solar Cycle

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3 articles · Page 1 of 1

October 8, 2015

Does the sun trigger autoimmune disease?

For hundreds of years, humans have charted the appearance of sunspots, the changing frequency of which marks highs and lows in the sun’s 11-year …

January 5, 2012

Spot-free sun: Is that normal?

For the past few years, astronomers and scientists have been looking up at a sun that is, more often than not, rather blank. Almost too blank. …