Life Cycle of a Star

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Across
  1. 2. could explode and become a planetary nebula
  2. 3. glows as the dust within it reflects off light energy
  3. 5. a star made completely of neutrons
  4. 6. a stellar explosion
  5. 8. formed when the outer layers of a star are lost when the star changes from a red giant to a white dwarf
  6. 10. live for less than a ____ ___
  7. 12. are believed to have been formed with the universe itself
  8. 13. stars that suffer internal nuclear reactions at the end of their lives and leads to an explosion
  9. 16. what is a greek word for wolf
  10. 17. consist mostly of hydrogen and helium gas
  11. 19. find strong amounts of ____ using a ____ telescope since black holes emit them.
Down
  1. 1. a very small, hot star with a surface temperature of 14,432+ F
  2. 3. could explode into a supernova
  3. 4. a ____ black hole may exist in the center of our own Milky Way galaxy
  4. 7. True or False- black holes can suck in other black holes
  5. 9. much mass concentration, such gravitational pull, many scare, wow
  6. 11. tend to be red in color because of the abundance of hydrogen
  7. 14. rapidly spinning neutron stars
  8. 15. when a gas from one star falls on to a white dwarf and causes it to explode
  9. 18. are dense clouds that absorb the light from stars behind them