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Solar activity follows an 11-year cycle – here’s how it controls eruptions and solar flares

  • Written by Yeimy J. Rivera, Researcher in Astrophysics, Smithsonian Institution
imageThe Sun's surface is dynamic, affected by convection in its interior. NASA/Solar Dynamics Observatory

When you look up at the sky on a sunny day, the Sun might seem like a bright spot, unchanging in the sky. But the Sun is a complex, dynamic celestial body, wrapped in electrical currents and magnetic fields that constantly move and tangle as it...

Read more: Solar activity follows an 11-year cycle – here’s how it controls eruptions and solar flares

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