Nobel chemistry duo solve molecule single handedness

France's Henri Kagan and Japan's Kenso Soai have won the Nobel chemistry prize for solving the mystery of why only one version of some molecules' mirror-image forms appears in nature. The discovery is decisive for the development of pharmaceuticals. Like hands, where humans have both a left hand and a right hand, all amino acids exist as two mirrored variants, but only one of them is found in the proteins in the body's cells. The other is rarely found...