Across
- 3. biggest planet in the solar system
- 4. reddish brown, dusty plane.
- 6. The nearest planet to earth
- 8. A planet with knowledge of living organisms
- 9. the 'ice giant'
- 11. Dwarf planet, which was recognized as a planet once before
- 12. planets too small to be recognized as a planet
Down
- 1. aircraft used to jet proplusion into space
- 2. The outermost planet in our solar system
- 5. green hypothetical organisms with UFOS
- 7. the second planet from the sun
- 10. International Space Administration