Across
- 4. the people that go up to space
- 8. hole the collapsed core of a massive star
- 9. a space vehicle that travels space
- 12. the eight and farthest planet from the sun in the solar system
- 13. the study of the universe
- 15. an imaginary belt across the sky in which the Sun, Moon, and all of the planets can always be found
- 16. it is famous for its rings
- 18. the seventh planet from the sun
- 21. a chunk of frozen gasses, ice, and rocky debris that orbits the Sun.
- 22. the red planet
Down
- 1. the dwarf planet
- 2. very hot, fluid rock
- 3. the galaxy that contains our solar system
- 5. the death explosion of a massive star
- 6. the planet we live on
- 7. largest planet in our solar system
- 10. the star at the center of the solar system
- 11. rock a rock that was once molten
- 14. it is the smallest and the closet to the sun
- 17. a fracture or crack in a planet's surface caused by extension
- 19. unidentified flying object
- 20. the planet is named after a roman goddess of love and beauty