John Cromwell Mather is an American astrophysicist and cosmologist. He shared the 2006 Nobel Prize in Physics with George Smoot for the "for their discovery of the black body form and anisotropy of the cosmic microwave background radiation". The Nobel Prize in Physics 2006, announced October 3, 2006. John C. Mather and George F. Smoot, “for their discovery of the blackbody form and anisotropy of the cosmic microwave background radiation”. John C. Mather: born 1946, Roanoke, VA, USA. George F. Smoot: born 1945, Yukon, FL, USA. Wiki link Wiki link Data: the Nobel Foundation (CC0).