Deep Space

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Across
  1. 1. atoms that are warm and flowing
  2. 4. radiation dump from supernova
  3. 6. group of solar systems
  4. 8. atoms that are cold and slow moving
  5. 9. the death of a star
Down
  1. 2. black hole at the center of a galaxy
  2. 3. atoms that are hot and free moving
  3. 5. large well of infinite gravity
  4. 7. atoms with split nuclei
  5. 10. largest star type