Across
- 4. Billions of stars held together by gravity.
- 7. Has no shape/pattern.
- 8. The middle of our solar system
Down
- 1. Shaped like a football.
- 2. It has a bulge, arms, and a spiral.
- 3. Our home galaxy.
- 5. The explosion that created the universe
- 6. Celestial objects orbiting the sun