Across
- 1. tail is more visible when it gets close to the sun
- 3. shines bright at night
- 6. it enters earths atmosphere
- 7. year a measurement unit for space
- 10. theory the sun was the center of the earth
- 11. god made earth and matter
- 12. becomes visible
Down
- 2. hits earths surface
- 4. space and matter just appeared
- 5. the universe was created by a singularity
- 8. theory the earth was the center of the solar system
- 9. infinite space