Professors Anne L'Huillier, left, Goran K. Hansson and Olga Botner, right, members of the Nobel Assembly announce the winner of the 2015 Nobel Prize in physics, in Stockholm, Tuesday Oct. 6, 2015. Takaaki Kajita of Japan and Arthur McDonald of Canada won the Nobel Prize in physics for the discovery of neutrino oscillations. (Fredrik Sandberg/TT via AP)
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