Galaxies Challenge-It

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Across
  1. 3. orbits earth
  2. 4. no defined shape
  3. 7. a system of millions or billions of stars, together with gas and dust, held together by gravity
  4. 8. bulge with spiral arms coming out
Down
  1. 1. football-shaped
  2. 2. ball of gas
  3. 3. our galaxy/candy
  4. 5. group of planets in a galaxy
  5. 6. our planet
  6. 8. group of stars