University of Chicago's Yoichiro Nambu, winner of the 2008 Nobel Prize for Physics, is pictured in this undated photograph released to Reuters October 7, 2008. Nambu, a professor at the University of Chicago, and two Japanese scientists, Makoto Kobayashi and Toshihide Maskawa, shared the 2008 Nobel Prize for Physics for discoveries in sub-atomic particles. Reuters Pictures logo Reuters Pictures 40 months ago

University of Chicago's Yoichiro Nambu, winner of the 2008 Nobel Prize for Physics, is pictured in this undated photograph released to Reuters October 7, 2008. Nambu, a professor at the University of Chicago, and two Japanese scientists, Makoto Kobayashi and Toshihide Maskawa, shared the 2008 Nobel Prize for Physics for discoveries in sub-atomic particles.