Galaxies Crossword

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Across
  1. 1. This type of galaxy has no defined shape.
  2. 4. The closest star to Earth other than the sun.
  3. 6. These galaxies have spiral arms and a central bulge.
  4. 7. Our galaxy is the _____ ___.
  5. 8. Distance light travels in one year.
  6. 10. There are about 100 billion ____ in the Milky Way.
Down
  1. 2. This type of galaxy is roughly oval-shaped.
  2. 3. A collection of dust, gas, stars, and other celestial objects.
  3. 5. Irregular galaxies could be the result of galactic ______.
  4. 9. Spiral galaxies have ___ that spiral out from their centers.