the universe and the solar system

1. spiral galaxy

2. Irregular galaxy

3. Barred spiral galaxy

4. Elliptical galaxy

5. the layers of the sun

6. solar system

7. solar system

8. Comets

9. Meteoroids

10. Asteroids

11. Supernova

12. White dwarf

13. Planetary nebulla

14. Red giant

15. Red supergiant

16. Average star

17. Massive star

18. Stellar nebula