Dr Chandrashekhar was an Indian-American theoretical physicist who made revolutionary contributions to astrophysics, particularly marked by him being awarded a Nobel Prize.
He determined the maximum mass of a white dwarf (no more than approximately 1.44 times that of the Sun), known as the Chandrasekhar limit and theorized dynamical friction (the loss of momentum and kinetic energy of moving bodies through gravitational interactions with surrounding matter in space), .
These calculations contributed to the eventual understanding of neutron stars, black holes, and supernova.
Those who wish to learn more about him could read his biography, “Chandra: A Biography of S. Chandrasekhar” by Kameshwar C. Wali.