Across
- 3. A Pluto moon
- 5. A Neptune Moon
- 9. A "sea" or large circular plain on Moon and Mars
- 10. One of Jupiter's moons
- 14. another name for Rocky planets
- 15. Tool used to observe objects in space from earth
- 16. Largest Volcano in our solar system
- 17. Planet with the Strongest winds.
Down
- 1. Name of the American Space Agency
- 2. another name of the Gas planets
- 4. the oldest unschocked lunar rock
- 6. Earth's Magnetic shield
- 7. One of the first scientists to use the telescope (observed Mars and Mercury)
- 8. solid,rocky and irregular bodies in the inner solar system
- 11. A well known asteroid in the asteroid belt
- 12. the total amount of energy a star radiates into space in one second
- 13. Best known dwarf planet