Space Adventure

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Across
  1. 2. A huge group of stars and planets
  2. 3. The center of our solar system
  3. 4. A vehicle that flies into space
  4. 6. The Earth's natural satellite
  5. 7. A person who travels to space
  6. 10. A vehicle used for space travel
Down
  1. 1. A large body that orbits the sun
  2. 5. A space rock that leaves a bright tail
  3. 8. A bright object in the night sky
  4. 9. A creature from another planet