Astronomy Crossword

123456789101112
Across
  1. 1. year a measurement unit for space
  2. 6. infinite space
  3. 7. space and matter just appeared
  4. 9. hits earths surface
  5. 10. theory the earth was the center of the solar system
  6. 11. shines bright at night
  7. 12. it enters earths atmosphere
Down
  1. 2. theory the sun was the center of the earth
  2. 3. the universe was created by a singularity
  3. 4. god made earth and matter
  4. 5. becomes visible
  5. 8. tail is more visible when it gets close to the sun