Space crossword puzzle

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Across
  1. 2. discovered Uranus
  2. 4. the first artificial object to orbit the earth
  3. 7. Aphrodites Greek name
  4. 8. Father of modern rocketry
  5. 9. The red planet
  6. 11. closet planet to the sun
  7. 14. the first women to fly in space
  8. 15. the ringed planet
Down
  1. 1. first astronomer who improved the telescope
  2. 3. The first American to fly in space
  3. 5. the Great Red Spot
  4. 6. The first human being to walk on the moon
  5. 10. The nomadic plaenet
  6. 12. was discovered in 1781 by William Hershel
  7. 13. discovered light is a combination of many colors; discovered laws of motio.