Across
- 4. We could live on this planet with some special equipment
- 6. Coldest planet in the solar system
- 8. You can see this at night
- 11. These are also known as minor planets
- 13. There is a black hole at the centre of this
- 14. This has more moons than other planet
- 15. This is an ice giant
Down
- 1. Closest planet to the sun
- 2. There are 8 of these in the solar system
- 3. There are at least 100 billion of these in the solar system
- 5. This planet has 80 known moons
- 7. This place is completely silent
- 9. Home to 8 billion people
- 10. Where a day is longer than a year
- 12. This takes up over 99% of the solar system