Across
- 3. Telescope satellite of the earth?
- 5. blue planet of the solar system?
- 7. planet with a group of rings in the solar system?
- 8. red planet of the solar system?
Down
- 1. the planet closest to the sun?
- 2. blue planet of the solar system?
- 4. satellite of the earth?
- 6. a planet with living organisms other than earth?