Across
- 1. planet closest to the sun
- 4. planet that is now a dwarf planet
- 7. what the Earth does around the sun
- 11. the opposite of light
- 12. planet with rings
Down
- 2. the opposite of hot
- 3. what the Earth does on its axis
- 5. sphere in the night sky lit by the sun
- 6. rock flying through space
- 7. vehicle in which to travel to outer space
- 8. where we live
- 9. what the sun is
- 10. person who explores outer space