Solar
cycle
Last Updated: September 16, 2026
Sunspots and the Butterfly Diagram Serial
Dark magnetic freckles plot an eleven-year rhythm that still teaches dynamo classes new humility.
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Stellar
interiors
Last Updated: March 6, 2026
Helioseismology: A Stethoscope on a Star
Oscillation modes let us CT-scan the solar interior without drilling.
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Heliosphere
Last Updated: December 3, 2023
Where the Solar Wind Learns Its Manners
Escaping plasma stitches a bubble that planets wear like invisible coats—sometimes comfortably, sometimes not.
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Plasma
physics
Last Updated: May 20, 2022
The Coronal Heating Heist Nobody Has Cracked
Why the corona blazes far hotter than the photosphere is a budget scandal almost a century old.
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