Stephen Hawking Crossword Puzzle

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Across
  1. 3. name of computer he made with friends at age 14
  2. 6. President who awarded Hawking The Presidential Medal of Freedom
  3. 8. Name of major scientific discovery related to black holes
  4. 9. Stephen Hawking's fatal disease
Down
  1. 1. Number of books he wrote with his daughter
  2. 2. Hawking's Middle name
  3. 4. Force that pulls everything towards Earth
  4. 5. Month Hawking was born
  5. 7. Day of the month Hawking was born
  6. 8. Stephen Hawking's book: A Brief _______ of Time