Solar Cause of Increased Aurora
The Northern and Southern Hemispheres have witnessed some spectacular aurora displays this week, and if you feel like the frequency of these events is increasing, you’re not wrong!
This recent study from scientists at NASA show that for approximately 20 years preceding 2008, there was a significant decrease in solar wind and other measurements. However, in the years since 2008, this study shows a reversal of the decline in solar wind activity, and when comparing data from 2008 with that from 2025, there have been large increases in a range of solar wind proton parameters, leading to more frequent and stronger auroras on Earth than have occurred in recent memory.
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The Sun Reversed Its Decades-long Weakening Trend in 2008
Abstract Over the course of two decades until 2008, the solar wind became significantly weaker with a constant declining trend in many important solar wind parameters, and solar cycl…
Jamie M. Jasinski, Marco Velli
And don’t forget to look up on a clear night!