Across
- 3. The initial explosion that resulted in the formation and expansion of the universe
- 5. blue white core that is left behind cools
- 6. the accurate scale of the entire solar system
- 8. Brilliant explosion of a dying supergaint star
- 11. brightness as seen from earth
- 12. a group of single stars
Down
- 1. a distance a light travels in one year
- 2. Large telescopes have spectrographs to analyze light
- 4. brightness the star would have if it were at and stranded distance from earth
- 7. all of space and everything in it
- 9. A contacting cloud of gas and dust enough mass to form a star
- 10. large cloud of gas and dust containing immense volume of materials