BIG ACTIVITY ON THE SUN: Sunspot numbers remain very low as Solar Minimum continues. Nevertheless, there is some big activity on the sun today. Really big. NASA satellites and amateur astronomers are monitoring a giant filament of magnetism jutting out from the edge of the solar disk. The glowing structure is fully one-tenth of the sun's diameter. Visit today's edition of Spaceweather.com to watch a movie of the unstable prominence.
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Above: A large solar prominence. Image credit: Efrain Morales Rivera of Aguadilla, Puerto Rico.
