Across
- 1. yellow dwarf star
- 2. humans live
- 5. gas giant and the biggest planet
- 6. 'no one can hear you...'
- 8. astronauts favourite chocolate (2 words)
- 10. constellation with three stars as a belt
- 11. closest planet to the sun
- 12. spins on its side, is icy
- 14. eighth moon of jupiter
- 15. also called ursa major
- 17. American space agency
- 18. Neil Armstrong was the first man on it
Down
- 1. the only married planet (has a ring)
- 3. impossible to put down
- 4. constellation that looks like a w
- 7. planet 142 million miles from the sun
- 9. believed to have killed dinosaurs
- 13. creation theory and a TV show (3 words)
- 16. so small they took away their planet title