Across
- 2. the cooled core that is left behind after a star runs out of energy
- 5. a group of single stars
- 7. cause something to happen in a particular way
- 8. explosion of a star
- 9. states the universe was all created in an instant billions of years ago
- 11. brightness a star would have if it was at a standard distance from earth
- 12. first stage of a stars information
Down
- 1. distance light travels in one year
- 3. a stars brightness as seen from earth
- 4. all of space and everything in it
- 6. reveal something through detailed examination
- 10. a large cloud of gas and dust