Unlikely Hero

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Across
  1. 4. sick
  2. 7. best way
  3. 8. developed
Down
  1. 1. threats
  2. 2. horizon
  3. 3. important
  4. 5. The approximate size of our solar system
  5. 6. surrounded by a ring of light and plasma—hot flowing matter made up of charged particles.
  6. 8. harmful