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- The sun dominates our sky and makes all life on earth possible.
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- Viewed in visible light, the sun shows dark patches known as “sunspots.”
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- The sun looks very different depending on whether you are observing it in visible or ultraviolet light.
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- The amount of activity on the surface of the sun changes over the course of an 11-year cycle.
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- A solar flare illustrates how material can be pulled off from the surface of the sun by magnetic fields.