samedi 20 août 2011

A new technique using sound waves can "see" the spots rising inside the sun, pos...

A new technique using sound waves can "see" the spots rising inside the sun, possibly improving forecasts of solar storms, scientists say.


Sunspots Can Now Be Predicted -- National Geographic
news.nationalgeographic.com
Sunspots are regions on the sun's surface that are cooler than the surrounding areas and so appear darker. The spots form due to intense magnetic activity, and other magnetically driven solar events—such as flares and coronal mass ejections (CMEs)—tend to erupt from areas where sunspots appear.

Source: National Geographic's Facebook Wall

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