Mysteries of Deep Space

name______________________________________ student number______________________

1. How long does it take light to travel across the Milky Way?
   
   
   
2. What astronomer discovered that the universe is expanding?
   
   
   
3. What event do astronomers believe began the universe?
   
   
   
4. A galaxy's "Red Shift" is derived by using what formula?
   
   
   
5. When was the Hubble Space Telescope launched?
   
   
   
6. What is the name of our galaxy?
   
   
   
7. How many galaxies are in the universe?
   
   
   
8. How many galaxies are in the Hubble Deep Field?
   
   
   
9. What is the altitude of Hawaii's Keck telescope?
   
   
   
10. Approximately how long did it take light to reach the earth from the most distant galaxies in the Hubble Deep field?