Across
- 2. Same direction
- 4. Big star explosion
- 7. Earth at the center
- 9. The plural is foci.
- 10. theory of the structure of the universe
Down
- 1. opposite direction
- 3. the further you are the more it moves
- 5. Sun at the center
- 6. relationship of earth and other planets
- 8. the oval shape that the earth moves