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Thursday, April 21, 2011

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

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