At 31, he and a colleague won the 1957 Nobel Prize in Physics for discovering that subatomic particles, contrary to what scientists thought, are always symmetrical. At 31, he and a colleague won the 1957 Nobel Prize in Physics for discovering that subatomic particles, contrary to what scientists thought, are always symmetrical. Lee, Tsung-Dao, Deaths (Obituaries), Nobel Prizes, Physics, Columbia University, Yang, Chen Ning, Chinese-Americans NYT > Science