1. Hubble, Models, and Galaxies!
Whirlpool Galaxy, M51
Sketch: 1845 (ground telescope)
Whirlpool Galaxy, M51
Hubble Telescope: 2001

2. Inner Planet Comparison (w/ Pluto – the former planet!)

3. Outer and Inner Planets

4. Our Star!

5. Edwin Hubble
Hubble noticed redshifts in the light from the galaxies, and concluded that galaxies are moving away from each other.
The Universe is expanding! 1929

6. What goes up, must come down
The origin of the Big Bang theory can be credited to Edwin Hubble. Hubble made the observation that the universe is continuously expanding.
Therefore, if the universe is expanding… going back in time suggests that all matter came from one source!

7. According to the Big Bang model, the universe expanded from an extremely dense, hot state and continues to expand today.

8. Hubble Telescope
(honoring Edwin Hubble!)

9. Hubble Space Telescope
Orbit height: 347 miles above Earth.

10. Galaxies are classified in part by their shapes.
Sombrero Galaxy: Spiral
Irregular: Magellanic Cloud
Elliptical: Most Common Type

11. Galaxies…

14. 2. 5 million light-years away is the galaxy Andromeda
2.5 million light-years away is the galaxy Andromeda. It is the nearest galaxy to our own, the Milky Way.
The Andromeda Galaxy, M31

15. SPIRAL GALAXIES!

16. Elliptical Galaxies

17. Irregular Galaxies

18. Hubble looked at Stars, Planets, and Nebulae
Our Star with Sunspots!