Does the corona look different when solar activity is high versus when it’s low?

One U.S. town will get two eclipses in seven years, making it the best place to watch the sun’s cycle in action

2016 solar eclipse

FICKLE FLAMES  Streamers and filaments encircled most of the sun during a solar eclipse in 2016, when the sun’s activity was waning. The Aug. 21 solar eclipse will show physicists what the corona looks like when solar activity has quieted down even more.

© 2016 Constantinos Emmanoulidis, Miloslav Druckmüller

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