Solar System

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Across
  1. 6. an instrument used to observe distant objects in space
  2. 8. the planet we live on
  3. 11. known as the red planet
  4. 12. the smallest planet and closest to the Sun
  5. 13. a planet that rotates on its side
  6. 15. the path a planet follows around the Sun
Down
  1. 1. an icy body that forms a glowing tail when near the Sun
  2. 2. the largest planet in our solar system
  3. 3. a huge collection of stars, dust, and gas
  4. 4. the farthest planet from the Sun
  5. 5. the hottest planet in the solar system
  6. 7. a small rocky object orbiting the Sun
  7. 9. the planet with the most visible rings
  8. 10. the star at the center of our solar system
  9. 14. Earth's only natural satellite