Across
- 1. who is the first dog in sace
- 3. A planet that has the highest mountains
- 6. how do they study in space
- 7. the first astronaut sent to space
- 11. unidentified flying object
- 12. what is the same size as Earth
- 13. What happens after a star dies.
- 16. what galaxy are we on
Down
- 2. the first monkey sent to space
- 4. Famous for its rings
- 5. how found Jupiter and its Moon
- 8. how did they reach the Moon
- 9. Orbits the Earth
- 10. that we can start fire
- 14. the coldest planet
- 15. one of Jupiter's Moon has water