Astronomie : Are Sunspots Disappearing ? (NASA)

Sources :

http://science.nasa.gov/headlines/y2009/03sep_sunspots.htm?list1348424

http://science.nasa.gov/headlines/y2009/images/sunspots/audio/story.mp3

September 3, 2009: The sun is in the pits of the deepest solar minimum in nearly a century. Weeks and sometimes whole months go by without even a single tiny sunspot. The quiet has dragged out for more than two years, prompting some observers to wonder, are sunspots disappearing?

"Personally, I'm betting that sunspots are coming back," says researcher Matt Penn of the National Solar Observatory (NSO) in Tucson, Arizona. But, he allows, "there is some evidence that they won't."

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