Across
- 3. All existing matter and space considered as a whole
- 4. The force that holds the galaxies together
- 5. Sphere or elongated galaxy with no central disk
- 7. The distance light travels in a year
- 8. Stars are concentrated in arms coming out from a hub
- 11. A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction
- 12. The nearest star to Earth
- 14. The nearest major galaxy to the Milky Way
Down
- 1. The galaxy that we live in
- 2. A galaxy that does not have a regular shape or structure
- 6. Earth's closest star to the sun
- 9. A group of stars that form a galaxy
- 10. Light years are a measure of ______
- 12. A luminous sphere of plasma held together by its own gravity
- 13. Particular form