It's a dream come true for "The Big Bang Theory:" world renowned British physicist and cosmologist Stephen Hawking will guest star on the sitcom early next month. A press release put out by CBS said Hawking, 70, will "share his beautiful mind with his most ardent admirer, Sheldon Cooper" on the show's April 5 episode.

"When people would ask us who a 'dream guest star' for the show would be, we would always joke and say Stephen Hawking," executive producer Bill Prady said in a statement, "knowing that it was a long shot of astronomical proportions. In fact, we're not exactly sure how we got him.  It's the kind of mystery that could only be understood by, say, a Stephen Hawking."