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