SPACE

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Across
  1. 2. Earth's only natural satellite
  2. 8. The piece of equipment someone might use to look at stars
  3. 9. The name of someone who travels into space
Down
  1. 1. This planet has a moon called Triton
  2. 2. The red planet
  3. 3. The study of the universe
  4. 4. The name of our galaxy
  5. 5. A big ball of dirty ice and snow in outer space
  6. 6. The planet closest to the Sun
  7. 7. The largest planet in the solar system