Background information, early interest in stars; meets Werner Heisenberg in Copenhagen and Berlin, 1927; studies at Universitt̃ Berlin, 1929; Heisenberg to Universitt̃ Leipzig, fall 1929. Fellow students Edward Teller, Guido Beck, Felix Bloch; Universitt̃ Gt̲tingen, 1931; emphasis on astronomy (Robert Atkinson, origin of the elements); interior of the stars (Arthur S. Eddington) and problems of energy sources; origin of the planetary system of keen interest. Ph.D. from Leipzig (Heisenberg), 1933; Niels Bohr's Institute, Copenhagen (George Gamow, Lev Landau, Bengt Strm̲gren), 1933-1934; to Leipzig as assistant, writes Die Atomkerne; sets out to solve the problem of the energy sources, 1936; Dozent Universitt̃ Berlin. Lise Meitner, Peter Debye, 1936; work on nuclear origin of energy in the stars. Work on carbon cycle (Hans Bethe's identical findings, George Gamow's role); returns to physics. Also prominently mentioned are: Peter Josef William Debye, Himmelswelt, Aloys Mueller, Walther Nernst, and Elis Strm̲gren.