Across
- 3. a path followed by an object as it goes around another object
- 4. anything having to do with the Sun
- 5. the third closest planet to the sun
- 6. this planet is surrounded by rings made of ice and dust
- 8. the gases which surround a planet
- 10. this planet is closest to Earth
- 12. this planet tilts on its axis
Down
- 1. I have to wear this on a lunar mission
- 2. a big ball of ice and snow in outer space
- 4. this is what solar panels get their enery from
- 7. an object that falls from space to earths surface
- 8. a rocklike object of different sizes
- 9. the smallest planet in our solar system
- 11. often called the red planet
- 13. U.S. agency responsible for space research