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Sunspots
Explores "the nature of sunspots and the fascinating history of our efforts to understand them." Includes "interviews with solar physicists and archaeoastronomers, historic images, modern NASA images and movies, and a sunspot research activity." Also features a glossary, and information on the sunspot cycle, solar flares, auroras, and geomagnetic storms. From the Center for Science Education, Space Sciences Laboratory, University of California, Berkeley.
http://cse.ssl.berkeley.edu/segwayed/lessons/sunspots/
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