Elements in the Universe

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Across
  1. 1. what our Sun is
  2. 5. one of the stages for a main sequence
  3. 6. cosmic islands of stars, gas, dust and dark matter
  4. 8. end stage for the largest of stars
  5. 9. how bright stars are from Earth
  6. 11. found across galaxies & the universe
  7. 17. magnitude(brightness) of celestial object
Down
  1. 2. creation of new atom nuclei
  2. 3. explosion that occurs in massive stars
  3. 4. the end stage for most massive stars
  4. 7. magnitude(brightness) from Earth
  5. 10. another word for nebula
  6. 12. what our Sun will become when it gets older
  7. 13. chemical process that powers stars
  8. 14. core of a star that shines white and blue
  9. 15. how much light is emitted
  10. 16. previous whitedwarf that has stopped having light