The following pages examine the most important and dynamic features of the Sun-Earth Connection. Solar Interior Solar Wind Sunspots Magnetosphere The Solar Cycle Plasma Clouds Around Earth Solar Flares Ionosphere CMEs Auroras   aurora coronal mass ejection flare geomagnetic field geomagnetic storm magnetosphere radiation belts solar cycle solar maximum solar minimum solar wind sunspot     View the full, printable version of the glossary.       For more on the history of human observation of sunspots, see the Galileo Debate. To learn more about the solar cycle visit What is Solar Max? See video of a Coronal Mass Ejection taken from the SOHO spacecraft.

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