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fredag, juni 25, 2010

Vad är det för fel på solen?

William Livingston at the National Solar Observatory in Tucson, Arizona, has been measuring the strength of the magnetic fields which puncture the sun's surface and cause the spots to develop. Last year, he and colleague Matt Penn pointed out that the average strength of sunspot magnetic fields has been sliding dramatically since 1995.

If the trend continues, in just five years the field will have slipped below the threshold magnetic field needed for sunspots to form.

Läs hela  New Scientist-artikeln:  http://www.newscientist.com/article/mg20627640.800-whats-wrong-with-the-sun.html

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