A model of the solar interior based on data from a solar seismometer. The hot core is false-colored blue to turquoise to highlight its changing properties. (Courtesy - SoHO)
This image appears in the #59: Where did all the Neutrinos go? Technology Through Time article.
Between May 10-12, 1999, the solar wind nearly vanished, causing Earth's magnetosphere to expand in volume by over 100 times!