Across
- 2. matter we can't see but, we know exist
- 3. a violent explosion that occurs when a star's core succumbs to gravity
- 6. all stars systems, galaxies, dust and gas
- 9. a force of gravity that even light can't escape
- 12. groups of hundreds to thousand of stars
- 13. appears to be a rotating disk of dust and stars
- 14. our galxay's name
- 15. a glowing gas ball of high tempatures
Down
- 1. stars grouped closely together
- 4. egg shaped rotating galaxies
- 5. begining of the exsistance of the uneverse
- 7. gravitational collapse cause the core to shrink into small glowing sphere
- 8. group of stars
- 10. arms that spiral around a spiral galaxy
- 11. giant red star collapsing inwards on it's self