Daily cosmobite: the dynamic Sun

May 7, 2013

midi512_blank_21 April 2004We rely on our nearest star, the Sun, for our light and much of our energy. Though from our distance it appears constant and unchanging, careful examination of its surface shows much activity. An indication of this activity is given by the presence of sunspots, which are regions of strong magnetic fields.

Spots on the Sun. Courtesy SDO/HMI

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