Sir Arthur Stanley Eddington

Born in Kendal, England, on December 28, 1882, Arthur Stanley Eddington became one of the leading astrophysicists of the early twentieth century. He studied at Owens College, Manchester, and Trinity College, Cambridge, and went on to serve as Plumian Professor of Astronomy and director of the Cambridge Observatory.

Eddington is especially remembered for his work on the internal structure, motion, and evolution of stars, as well as for explaining relativity to English-speaking readers. He played a central role in the 1919 solar-eclipse expedition whose observations were widely seen as important early evidence for Einstein’s general theory of relativity.

Alongside his scientific research, he was a gifted popular writer with a rare talent for making complex science readable. That combination of deep scholarship and clear explanation helped make him one of the most influential scientific voices of his era, and many ideas in astronomy still carry his name today.