astronomy

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Across
  1. 2. a new star
  2. 5. collapse and violent explosion of a massive star
  3. 8. electron repel one another
  4. 11. type of neutron star
  5. 12. properties of a spinning object
  6. 13. mass of a stable white
  7. 14. in space that have very high density
Down
  1. 1. of two know sets of fusion reaction
  2. 3. to last stage of a dying star
  3. 4. repel one another
  4. 6. highly magnetized neutron star
  5. 7. more than 1 star but less then 3
  6. 9. that has not high mass
  7. 10. stage of a f,g,k,m star