Subrahmanyan Chandrasekhar, a pioneering astrophysicist at University of Chicago, transformed modern theoretical astronomy through groundbreaking work on stellar structure, stellar evolution, and radiative transfer. His calculation of the Chandrasekhar Limit, the maximum mass of a stable white dwarf star, became a cornerstone of astrophysics. Over a career spanning decades in the United States, he helped shape the field through both research and mentorship, while also serving as editor of the Astrophysical Journal for nearly twenty years. His contributions established him as one of the most influential scientists of the twentieth century.
