George Smoot, a guest star in the Big Bang Theory episode, "The Terminator Decoupling", won what prize in 2006?
The Terminator Decoupling:  The episode features guest appearances by actress Summer Glau and cosmologist George Smoot. George Smoot:  He won the Nobel Prize in Physics in 2006 for his work on the Cosmic Background Explorer with John C. Mather that led to the "discovery of the black body form and anisotropy of the cosmic microwave background radiation".
Nobel Prize in Physics