Across
- 1. orbiting body
- 5. Northern polar ice cap
- 8. Future Mars Missions
- 9. Recent U.S. Mars Missions
- 11. orbiting body
Down
- 2. tallest mountain on Mars
- 3. Early U.S. Mars Missions
- 4. Southern polar ice cap
- 6. Color of Mars
- 7. Mars is what 'number' from the sun?
- 10. Primary gas in Mars atmosphere