Universe and Solar System

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Across
  1. 4. balls of dust and ice that orbit the Sun
  2. 7. the galaxy that we live in
  3. 8. the biggest planet in our solar system
  4. 9. groups of stars that look like a particular shape in the sky
  5. 10. everything that exists in space
  6. 12. the planet we live on
  7. 13. the dwarf planet in our solar system
Down
  1. 1. the Earth’s natural satellite
  2. 2. objects in orbit around a planet
  3. 3. the planet closest to the Sun
  4. 5. groups of millions of stars, planets, gas clouds and rock fragments
  5. 6. the planet farthest from the Sun in our solar system
  6. 11. the number of planets in our solar system