Subrahmanyan Chandrasekhar

Subrahmanyan Chandrasekhar was born on October 19, 1910, in Lahore into an illustrious Tamil family of scholars; his paternal uncle was Sir C. V. Raman, the 1930 Nobel Laureate in Physics. Educated at Presidency College in Madras, Chandrasekhar demonstrated astonishing mathematical virtuosity, publishing his first research paper on thermodynamics before turning nineteen.

In 1930, during his steamship journey from India to Cambridge University on a government scholarship, the nineteen-year-old calculated the maximum mass of an electron-degenerate star—the celebrated 'Chandrasekhar Limit'. He mathematically proved that dying stars exceeding 1.44 times the mass of the Sun cannot stabilize as white dwarfs and must collapse under their own gravity, establishing the theoretical bedrock for neutron stars and black holes. Despite vehement early opposition from Sir Arthur Eddington, Chandrasekhar's mathematical rigor stood unshakable.

Moving to the United States in 1937, Chandrasekhar served for over five decades as a legendary professor at the University of Chicago and Yerkes Observatory, editing the Astrophysical Journal for nearly twenty years. In 1983, he was awarded the Nobel Prize in Physics. Following his death in 1995, NASA named its premier flagship space observatory, the Chandra X-ray Observatory, in his eternal honor.