1. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Month, Day, Year Location Journey Through the Expanding Universe

2. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Roger Smith, CTIO Home Sweet Universe, 1905

3. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe GMOS-S Commissioning Team, Gemini Observatory Home Sweet Universe, 2005

4. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe NASA, the Hubble Heritage Team and A.Riess (STScI) A Couple of Gals

5. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Post Cards From The Universe

6. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Smithsonian Astrophysical Observatory Good Morning, Sunshine! All light shines with a certain amount of energy. Lower energy light includes: Radio waves Microwaves Infrared Higher energy light includes: Ultraviolet X-rays Gamma rays Less energy = Red More energy = Blue Our eyes detect only visible light

7. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Elementary My Dear Einstein Hydrogen Every element has a characteristic “fingerprint” in the form of a “spectrum” “one line, two line, red line, blue line”

8. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Smithsonian Astrophysical Observatory In a Galaxy, Far, Far, Away A galaxy: Billions of stars Light from the galaxy: Lots of hydrogen European Southern Observatory “one line, two line, red line, blue line”

9. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe NASA, ESA, STScI and the HUDF Team It’s Not Easy Being Red

10. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe NASA/JPL-Caltech NASA’s Spitzer Infrared Space Telescope NASA/JPL-Caltech/M.Urry (Yale)

11. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Our Expanding Universe S. Beckwith & the HUDF Working Group (STScI), HST, ESA, NASA

12. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Milky Way: Roger Smith, CTIO HCG 87: The GMOS-S Commissioning Team, Gemini Observatory Galaxies: NASA, the Hubble Heritage Team and A. Riess (STScI) Trifid Nebula: © Jean-Charles Cuillandre (CFHT), Hawaiian Starlight, CFHT Electromagnetic Spectrum: SAO Spectrum Images: SAO, Virtual Spectroscope, Emilio Falco (CfA) NGC 300: European Southern Observatory Distant galaxies: NASA, ESA, STScI, and the HUDF Team Spitzer: NASA/JPL-Caltech, J. Urry (Yale) Special thanks to the Museum of Science, Boston Historical images: Rocky Kolb (Fermilab) Historical images: Robert Kirshner (CfA) Historical image: Barbara J. Becker (UC-Irvine) Historical image: Eric Shaver (U. Toronto) Historical image: Paul Eskridge (Minnesota State) Andromeda Galaxy: Palomar, P. Challis (CfA) Ultra Deep Field: S. Beckwith & the HUDF Working Group (STScI), HST, ESA, NASA Stars in Leo: © Phillippe Durville Sun SOHO (ESA & NASA) Orion Nebula: © ESO ALBERT EINSTEIN and related rights ™/© of The Hebrew University of Jerusalem, used under license. Represented by the Roger Richman Agency, Inc., www.albert-einstein.net URL or program name here http://www.universeforum.org/einstein/ Credits

13. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe There’s No Place Like Home A view of the universe, circa 1905 Composition: Stars, stars, and more stars Arrangement: A disc with our solar system near the center Age: Eternal

14. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Cornelius Easton A Nebulous Question The Milky Way Star System, 1900

15. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Palomar Observatory, P.Challis (CfA) The Universe of 2005

16. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe S. Beckwith & the HUDF Working Group (STScI), HST, ESA, NASA How Far Are the Stars and Galaxies?

17. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe © Philippe Durville How Far Are the Stars? Denebola Zosma Chertan

18. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Einstein won the Nobel Prize for his discovery of The Photoelectric Effect Electric = Charged particles A Nobel Idea Photo + Electric = Light + Atoms The interaction of light and matter Photo = Light

19. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Hubble, Hubble, Toil and Trouble Edwin Hubble showed that the Milky Way was not the whole Universe. He showed we live in a universe of galaxies, each equivalent to the Milky Way. And most surprisingly of all… Galaxies in the universe are moving away from us! The Huntington Library San Marino, California

20. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Smithsonian Astrophysical Observatory Messages from Space The Sun: Absorption (Dark Line) Spectrum Orion Nebula: Emission (Bright Line) Spectrum Smithsonian Astrophysical Observatory

21. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Pattern-ity Test Low energy (long wavelength) High energy (short wavelength)

22. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Preserving the Static Quo Introduced to maintain a static, unchanging universe. There was NO evidence to support it! Einstein’s cosmological constant

23. http://www.universeforum.org/einstein/ Journey Through the Expanding Universe Return of the Cosmological Constant With the discovery of Dark Energy at the end of the 20th Century, Einstein’s “biggest blunder” was back on the table. The universe is not just expanding, it’s also accelerating!