1. Deep Space Notes

2. Stars Fusion Life Cycle H-R Diagram Galaxies Types Universe Big Bang Evidence oCBR oRed Shift

3. Stars make sunshine through the process of nuclear fusion. Hydrogen atoms smash together with such force they create a new element, Helium.

4. Stars make sunshine through the process of nuclear fusion. Hydrogen atoms smash together with such force they create a new element, Helium. Fusion in the Sun Applet

5. Stars go through a “life cycle”. They enter the main sequence when fusion starts and “die” when Hydrogen fuel is used up.

6. Stars go through a “life cycle”. They enter the main sequence when fusion starts and “die” when Hydrogen fuel is used up.

7. Stars can be classified based on their temperature, color, size, and luminosity (brightness). ESRT page 15. HR.ppt

8. Stars Stars can be classified based on their temperature, color, size, and luminosity (brightness). ESRT page 15.

9. Galaxies Stars are not randomly distributed around space. They form groups of billions of stars called galaxies.

10. Galaxies take many shapes.

11. Galaxies Galaxies take many shapes. M81

12. Galaxies Galaxies take many shapes. M101

13. Galaxies Galaxies take many shapes. M74 Galaxy

14. Galaxies Galaxies take many shapes. Barred Galaxy

15. Galaxies Galaxies take many shapes. Starburst Galaxy

16. Galaxies Galaxies take many shapes. Sombrero Galaxy

17. Galaxies Galaxies take many shapes. The Devil's Mask

18. Galaxies Our solar system is in the Milky Way galaxy; a large barred spiral. Us

19. Galaxies Our solar system is in the Milky Way galaxy; a large barred spiral. Us

20. Galaxies HUDF.mov

21. Galaxies Stars are not randomly distributed around space. They form groups of billions of stars called galaxies. Galaxies take many shapes. Our solar system is in the Milky Way galaxy; a large spiral.

22. Universe Everything.

23. Universe The universe is believed to have expanded from an infinitely dense and infinitely hot point. The Big Bang.

25. Universe Evidence that supports the Big Bang model of the universe includes the red-shift of distant galaxies and cosmic background radiation.

26. Universe Red Shift of Distant Galaxies All galaxies have a color that is redder than they should be. This is caused by the moving of the galaxy away from the Earth. The Doppler Effect.

27. Universe Cosmic Background Radiation If the universe had a beginning, there should still be left over heat. The CBR is the left over heat of the big bang.

28. Deep Space Notes Stars Fusion Life Cycle H-R Diagram Galaxies Types Universe Big Bang Evidence oCBR oRed Shift