Across
- 2. Many universes
- 4. A system of millions and billions of stars
- 7. The universe that can be seen
- 9. A completely empty space
- 13. The region beyond the Earth's atmosphere.
- 14. Matter that cannot be seen
Down
- 1. Massive explosion when universe began
- 2. The galaxy we live in
- 3. A level surface without raised areas
- 5. A scientist that studies space
- 6. Exaggerated
- 8. Shaped like a sphere
- 10. Luminous celestial bodies of gas that shine
- 11. Has a mass of 330,000 times the earth
- 12. An unknown from of energy in the universe