Space

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Across
  1. 4. has things living on it
  2. 5. is the closet to the Sun
  3. 8. is White/Grey
  4. 10. all are planets and stars are in
  5. 13. things that float in space
  6. 15. is part of a rocket
  7. 16. it orbits Earth
  8. 17. has mountains and craters on it
  9. 18. are believed to live on the orther planets
Down
  1. 1. also known as the red planet
  2. 2. is the largest of Mar's moons
  3. 3. has 64 Moons
  4. 6. get sent to planets and back to Earth
  5. 7. a group of stars, dust, gas and dark matters
  6. 9. a planet full of methane
  7. 11. rains diamonds
  8. 12. made ice, rock, co2 or methane mixed with dust
  9. 14. is the smallest of Mar's moons
  10. 15. has rings made of ice
  11. 19. is one of our largest stars