stars

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Across
  1. 4. the biggest discovered
  2. 5. when a massive star collapes
  3. 6. the first phase of a star
  4. 7. a star that is past it's peak
  5. 9. a cold whitedwarf
  6. 10. they are about the size of a planet
Down
  1. 1. a big explosion of a star
  2. 2. the peak of a stars life
  3. 3. this looks like a star but is not hot enough
  4. 8. into get sucked in to this you never get out