Want to find out more about Sunspots? Also the Solar Wind, Near Earth Objects, Meteor showers, Cosmic rays?
Try viewing https://spaceweather.com – today it has information and photos about the largest sunspot seen in years. The Sun has a solar cycle, it has a minimum and maximum activity over a period of 11 years. It is caused by the Sun’s magnetic activity. I can’t explain the science properly so have a look at the site.
It also shows information about Auroras and comets among other things, and it is understandable and not too technical.