Fossil forest recorded ancient sunspots

The sun’s surface is home to dark, relatively cool blotches of high magnetic activity known as sunspots, which vary in number over a roughly 11-year cycle. In a new study in Geology, scientists found evidence of this solar cycle dating back 290 million years to the Permian Period.

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Bethany Augliere

Bethany Augliere

Augliere is a freelance writer and photographer and a former editorial intern with EARTH. She is a graduate of the science communication program at the University of California, Santa Cruz, and holds a master’s degree in marine biology from Florida Atlantic University. For more of her work visit

Friday, May 5, 2017 - 06:00

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