SOLAR SYSTEM

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Across
  1. 5. smaller bodies in the orbit around the sun
  2. 6. the blue planet
  3. 7. it is a dwarf planet in the solar system
  4. 8. this was formed 4.6 billion years ago
  5. 9. the largest planet in the solar system
  6. 10. the planet found at last
  7. 12. earth's only natural star
  8. 13. the star at the centre of the solar system
Down
  1. 1. the comet that is seen every 76 years
  2. 2. morning star
  3. 3. saturn's natural satellite
  4. 4. the distance traveled by light in a vaccum in one tropical year
  5. 10. mission pluto's space shuttle was launched this many years ago
  6. 11. this planet found 716 planets