Hans Albrecht Bethe was a German and American nuclear physicist who, in addition to making important contributions to astrophysics, quantum electrodynamics and solid-state physics, won the 1967 Nobel Prize in Physics for his work on the theory of stellar nucleosynthesis. Born in Strasbourg, Germany, in on July 2, 906. He attended the University of Munich, studying with Arnold Sommerfeld, and after receiving his degree in 1928, taught at Frankfurt, Stuttgart and Munich. In 1930 and 1931, he received fellowships first to Cambridge and then to Rome where he worked with Enrico Fermi. In 1947, Bethe was the first to explain the Lamb-shift in the hydrogen spectrum, and he thus laid the foundation for the modern development of quantum electrodynamics. Later on, he worked with a large number of collaborators on the scattering of pi mesons and on their production by electromagnetic radiation. In 1975, he received the National Medal Of Science. He died on March 6, 2005 in Ithaca, New York, United States.