Daily Archives: May 11, 2025

The Sun’s Little-Known 100-year “Gleissberg Cycle” is Waking Up

Posted on May 11, 2025 by Rashid Faridi

Via SpaceWeather.com You’ve heard of the 11-year sunspot cycle. But what about the Centennial Gleissberg Cycle? The Gleissberg Cycle is a slower 100-… The Sun’s Little-Known 100-year “Gleissberg Cycle” is Waking Up

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