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