Celebrities agreed to appear on "The Simpsons" with little hesitation, but the show has also hosted musicians, authors, politicians, and even prominent scientists such as Stephen Hawking.

Stephen Hawking was the most recognisable scientist ... his first guest appearance on the Simpsons. By now he was an iconic figure, as famous for his public writings and cameos as for his ...

Earlier this week, theoretical physicist Stephen Hawking out-snarked the king of snark, talk show host John Oliver. Hawking was Oliver's first guest for his "Great Minds: People Who Think Good ...