Who was Stephen Hawking?

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Across
  1. 2. Hawking's disease
  2. 3. Hawking's nickname
  3. 5. _________ College is the college in Oxford Hawking went to
  4. 6. _______ Professor: Professor British award for scientists
  5. 8. A ______ History of Time is Hawking's book of discoveries
  6. 9. _______ Horizon is the "line" around a black hold that if anything crosses gets sucked into the black hold
  7. 10. The college Hawking got his PhD at
Down
  1. 1. Hawing ________ radiation is Hawking's most known discovery
  2. 4. Hawking's job
  3. 7. The subject Hawing studied