1.35 Recall that the solar system is part of the Milky Way galaxy: describe a galaxy as a large collection of billions of stars, state that the universe is a large collection of billions of galaxies

1. What is a GALAXY?
2. Which galaxy are we in?
3. Source an image of our galaxy

Source: http://www.atlasoftheuniverse.com/galaxy.gif
4. What type of galaxy are we in?
5. How many galaxies are there is the Universe?