Across
- 1. Goldilocks zone planet in the Milky Way
- 3. When our universe exploded and started expanding
- 4. Made up of Planets, Stars, Asteroids, and other celestial objects
- 6. No certain structure
- 7. A collection of gas, dust, stars, and solar systems
Down
- 1. Round or Oval shaped
- 2. Earth's Galaxy
- 4. Large star in the Milky Way
- 5. Long "arms" that surround it