Across
- 2. What we'll be going to space on
- 5. The seventh planet from the Sun
- 6. Surround Jupiter, Saturn, Uranus, and Neptune
- 8. The boundless three-dimensional extent in which objects and events have relative position and direction
- 9. Most planets have around it, holds air in
Down
- 1. Color of planet
- 3. Planets rotate on this
- 4. Studies planets and outer space
- 7. How far our planet is from the sun
- 8. Used for going out into space
- 10. Eight of these in our solar system
