Life Cycle of Stars

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Across
  1. 2. an aging giant red star that has high mass
  2. 3. a star category (our sun is in)
  3. 6. the explosion of a star
  4. 8. an enormous amount of mass is packed into a tiny volume
  5. 11. a ding star in final stages of stellar evolution, large and red
  6. 13. birth of a star
  7. 14. what stars like the Sun become after they have exhausted their nuclear fuel.
  8. 15. cloud of gas and dust, start of star life cycle
Down
  1. 1. when the forces in a star are equal
  2. 4. matter that exist between star systems
  3. 5. self-luminous celestial body of gas in space
  4. 7. a very small cooled remnant of white dwarf
  5. 9. the process of formation
  6. 10. a region of cosmic gas and dust formed from the cast-off outer layers of a dying star
  7. 12. dense compact star composed of neutrons