1. Galaxies and our Cosmic Future Charles Liu City University of New York, College of Staten Island American Museum of Natural History, NY 23 September 2011

3. The Milky Way: Inside Our Own Galaxy The Carina Nebula (Hot Massive Star) The Coalsack (Cold Gas Cloud)

4. What the Milky Way might look like from the outside:

5. What the Milky Way might look like from the outside:

6. Other Galaxies

7. Other Galaxies

8. Galaxies In Visible and Infrared Light -- pretty cool, eh? :)

9. Before Galaxies Collide…

12. What about THIS galaxy? (Name: “G515”)

13. WHAT ARE THESE THINGS?

16. Galaxy Luminosity Functions Number of galaxies per unit volume per unit luminosity Number of galaxies per unit volume per unit magnitude

17. The MMT Observatory - Mt. Hopkins, AZ 6.5 m (257”) primary mirror

18. What a typical Spiral Galaxy looks like “ flat,” “blue” continuum; Strong emission lines, esp. H-alpha (n=3 to n=2)

19. What a typical Elliptical Galaxy looks like Weak/no emission lines; G, K stars dominate continuum emission

23. Kitt Peak National Observatory - Sonoran Desert, Arizona

31. Galaxies and our Cosmic Future Charles Liu City University of New York, College of Staten Island American Museum of Natural History, NY 23 September 2011