Across
- 3. All galaxies, space dust, etc. grouped together
- 4. High point of super strong gravity, letting no light escape
- 7. A grouping of solar systems, space dust, etc.
- 11. Curved sections connected to the center of a spiral galaxy
- 14. A NASA telescope revolving around Earth
- 15. An invisible hypothetical type of matter
Down
- 1. Our galaxy
- 2. The amount of light in one area
- 5. A type of galaxy in an oval shape
- 6. A type of galaxy containing spiral arms
- 8. A large scale measurement of distance used for space, having to do with light speed
- 9. The amount of matter in an object
- 10. A type of galaxy with no particular shape
- 12. Cloud and dust and gas in space
- 13. An object of high luminosity exiting a black hole