Earth - Moon - Sun

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Across
  1. 3. also commonly known as the half moon
  2. 6. a fixed luminous point in the sky
  3. 8. the center of our solar system
  4. 9. shrinking
  5. 11. the path the earth takes around the sun is called its...
  6. 12. almost fully lit
  7. 13. middle phase of the lunar cycle
  8. 14. the galaxy that we live in
  9. 15. the Milky Way is this type of galaxy
Down
  1. 1. a system made up of eight planets and their moons
  2. 2. a natural satellite that orbits our Earth
  3. 4. first phase of the lunar cycle
  4. 5. only a sliver illuminated
  5. 7. growing
  6. 10. a theory based on evidence