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.
During intense solar flares, astronauts see bright flashing streaks of light as a result of high-energy particles zipping through their eyeballs.