Across
- 1. (n): the air around a planet
- 4. (n): travel from one place to another
- 5. (v): to go to other places
- 9. (n): going somewhere without coming back
- 10. (n): a star and the planets around it
- 13. (n): a big group of stars and planets
Down
- 2. (n): a large round object that moves around a star
- 3. (n): everything in space
- 6. (n): the planet we live on
- 7. (n): the area beyond Earth with stars and planets
- 8. (n): air-like substance, not solid or liquid
- 11. (v): to move around something in space
- 12. (n): a person who goes into space