Space and Planets

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Across
  1. 1. Huge group of stars
  2. 4. Path around a planet or star
  3. 5. Closest planet to the Sun
  4. 8. Largest planet
  5. 11. Our home planet
  6. 12. Planet that spins on its side
  7. 15. Person who travels in space
  8. 18. Cloud of gas and dust in space
  9. 19. Object with extremely strong gravity
  10. 21. The universe
  11. 23. Everything that exists
  12. 24. Planet with famous rings
  13. 25. When one space object blocks another
Down
  1. 2. Rocky object in space
  2. 3. Icy object with a tail
  3. 6. Hottest planet
  4. 7. Blue, distant planet
  5. 9. Force that pulls objects together
  6. 10. The red planet
  7. 13. Glowing ball of gas
  8. 14. Earth’s natural satellite
  9. 16. Tool for viewing distant objects
  10. 17. Vehicle used to reach space
  11. 20. Area beyond Earth’s atmosphere
  12. 22. Star at the center of our system