Stephen Hawking NASA 50th (200804210010HQ) by NASA/Paul E. Alers (CC BY-NC-ND 2.0)

Stephen Hawking

Stephen Hawking is a theoretical physicist best known for his work on black holes. After writing the best-selling popular science book A Brief History of Time in 1988, Hawking became a household name. There is an entire Wikipedia page dedicated to his appearances in popular culture, which include guest roles on The Simpsons and Star Trek: The Next Generation.

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