Sunspots are planet-sized islands of magnetism floating in a fiery sea of solar plasma. Unlike the hard-rocky islands of Earth, however, the “firmament” of sunspots is in a constant state of flux. Boiling motions in the underlying plasma cause sunspot magnetic fields to move and shift, so that the active regions change shape on a daily basis... [MORE
*NASA’s Solar Dynamics Observatory
Art will be the last bastion when all else fades away.
~ Timothy White (b 1952), American rock music journalist
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