Across
- 4. galaxy that only has a few million to billion stars
- 5. the creation of the universe
- 7. gravity shrinks the stars core to a white ball
- 10. explosion from when a star collapses in on itself
- 11. two stars orbiting each other
- 12. a large red colored star
- 13. our galaxy
- 14. thing so dense that light cannot escape it
- 15. biggest group of stars
Down
- 1. change in frequency of a wave
- 2. mater we cant see but know is there
- 3. study of the universe
- 6. group of stars
- 8. makes up 71%of energy in the universe
- 9. egg shaped galaxy