Across
- 4. it makes up all the stars in universe
- 7. our home galaxy
- 8. only in the middle of spiral
- 9. Looks like a football
Down
- 1. holds earth and 7 other planets
- 2. galaxy with no true shape
- 3. galaxy with arms
- 4. a system of millions or billions of stars
- 5. hot ball of gas
- 6. the star the earth orbits