Astronomy Crossword

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Across
  1. 1. tail is more visible when it gets close to the sun
  2. 3. shines bright at night
  3. 6. it enters earths atmosphere
  4. 7. year a measurement unit for space
  5. 10. theory the sun was the center of the earth
  6. 11. god made earth and matter
  7. 12. becomes visible
Down
  1. 2. hits earths surface
  2. 4. space and matter just appeared
  3. 5. the universe was created by a singularity
  4. 8. theory the earth was the center of the solar system
  5. 9. infinite space