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How do astronomers know about

  1. Galaxy Formation Quiz3 of 73 of 7 Items Question How do astronomers know about the future collision of Andromeda and the Milky
  2. How do astronomers know about the future collision of Andromeda and the Milky Way?(1 point)Responses The two galaxies have
  3. How do astronomers know about the future collision of Andromeda and the Milky Way?(1 point)Responses The two galaxies have
  4. How do astronomers know about the future collision of Andromeda and the Milky Way?(1 point)Responses Astronomers have observed
  5. How do astronomers know about the future collision of Andromeda and the Milky Way?(1 point)Responses Astronomers have observed
  6. How do astronomers know about the future collision of Andromeda and the Milky Way?(1 point)Responses All galaxies will collide
  7. How do astronomers know about the future collision of Andromeda and the Milky Way?(1 point) Responses Astronomers have observed
  8. How do astronomers know about the future collision of Andromeda and the Milky Way?(1 point) Responses Astronomers have observed
  9. Research different aspects of astronomy. Investigate the following:methods used to study the universe in both ancient times and
  10. The new moon allows astronomers to observe the stars better. How many days will the astronomers have to wait for the new moon if