Black Holes

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Across
  1. 3. biggest type of black hole
  2. 7. a grey hole
  3. 8. what the whole universe is made of
  4. 9. first telescope to take an image of a black hole
  5. 11. how a black hole is created
  6. 13. first black hole to be discovered
  7. 14. the 4th state of matter
  8. 15. a type of matter that comprises of most the universe
  9. 16. closest black hole discovered
Down
  1. 1. made the most important black hole discoveries
  2. 2. what happens to matter entering a black hole
  3. 4. what is at the other end of a black hole
  4. 5. a black hole theory
  5. 6. a technology used to find black holes
  6. 7. a different name for a black hole
  7. 10. the biggest black hole discovered
  8. 12. first person to find a black hole