Across
- 2. biggest explosion in the universe
- 7. clouds of gas that form in interstellar space
- 8. bigger than average stars
- 9. smaller than massive stars
- 10. a glowing shell of gas and plasma formed by certain types of stars
- 11. a warp in time that nothing, not even light, can escape from
Down
- 1. next faze after average stars
- 3. a loose mass of cold gust and gas
- 4. a glowing shell of gas and plasma formed by certain types of stars
- 5. these are created when giant stars die
- 6. next faze after massive stars