Across
- 1. To travel through a place to learn about it
- 3. Something that is difficult or impossible to understand or explain
- 5. Unexpected or causing a feeling of wonder
- 9. The rate at which something moves
- 10. Scientists who study stars, planets, and the universe
- 11. Not the same as other
- 13. Not thick; having a small distance between two opposite sides
- 14. The Sun and all the planets that move around it
Down
- 2. Going by or moving past a location
- 4. The path that a moving object follows
- 6. To have become greater in size, amount, or degree
- 7. Occuring or situated between the stars
- 8. To strike a surface, like a door, to get attention
- 9. Unusual or difficult to understand
- 12. A word that means "perhaps" or "possibly"