Across
- 3. Very big
- 4. A big group of stars and planets
- 6. The very top layer of the Earth
- 8. The path around a planet or a star
- 10. Where scientists look at the stars
- 12. One of a kind
- 13. A piece of rock that typically hits the Earth's surface
Down
- 1. A scientists who looks at the stars
- 2. The very middle of the Earth
- 5. A small rock body that goes around the sun
- 7. All of the galaxies and everything in space
- 9. A body made out of ice and dust that looks like a bright star with a tail
- 11. To live