Across
- 2. it's close to the sun
- 4. a planet with rings
- 8. used by the aliens
- 9. human that goes to space
- 10. appears at night
- 11. the sun is a ____
Down
- 1. a giant planet
- 3. used by the astronauts
- 5. It's green
- 6. it's yellow and bright
- 7. we live on the ____ earth
- 10. a red planet