1. The Sun and the Moon

2. Solar granulation: a manifestation of convection in the Sun

3. Sunspots-the Sun today

4. Sunspots: the Sun 2 years ago

5. The best available view of sunspots

6. The size scale of sunspots

7. The 11 year sunspot cycle

8. The 11 year sunspot cycle goes back as far as we have observations

9. Right now, we are about one year away from solar minimum

10. Layers of the solar atmosphere: the photosphere

11. Layers of the solar atmosphere: the corona

12. Solar explosions 1: solar flares

13. Solar filaments—see them through our telescopes

14. Filaments and prominences erupt as coronal mass ejections

15. Next topic: The Moon, key to understanding the solar system

16. Orbit of the Moon