Friday, January 1, 2021

Welcome to 2021!

SDO was recently told we were renewed for another three years of operations. This will take us well into the rising phase of Solar Cycle 25. I would like to thank all of the people who helped write the Senior Review proposal to keep SDO operating.

Here is a excellent example of the beginning of Solar Cycle 25. This AIA 193 Å movie shows a solar disk with coronal holes, filaments, and a lovely coronal cavity above the limb at 7 o'clock. You can see the filament as the dark lines betwee the cavity and the surface. We should see more cavitites as the polar crown filament continues to form.

Have a prosperous 2021!