guardian: A handout picture released by NASA’s Solar Dynamics Observatory shows a composite of 25 separate images of the sun spanning the period of April 16, 2012, to April 15, 2013 to create a snapshot of the most active zones on the sun’s surface.
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guardian: A handout picture released by NASA’s Solar Dynamics Observatory shows a composite of 25 separate images of the sun spanning the period of April 16, 2012, to April 15, 2013 to create a snapshot of the most active zones on the sun’s surface.
