Arthur Eddington was an eminent scientist who is credited with the establishment of many renowned theories, which have been named after him, such as ‘Eddington number’ and ‘Eddington limit’. He was born to a middle-class family and after the sad demise of his father his mother took up the responsibility of the family. He was taught at home before attending school. He excelled as a student and earned several scholarships which helped him in his further studies. His remarkable performance at the ‘Owens College’ earned him the opportunity to attend the prestigious ‘University of Manchester’. Physics was his area of interest and he completed his graduation with a major in the subject. He was trained under the tutelage of great scholars like Arthur Schuster, Horace Lamb, John William Graham and Robert Alfred Herman, and these learned people provided him with vast knowledge and enhanced his excellence. He engaged in experimental works and carried on rigorous research and established theories which served as breakthrough in the world of physics. He was involved in astronomical research and developed theories regarding the interior of stars and stellar movements. He was the first English physicist to explain Einstein’s theory of relativity. His books answer many questions about the universe; however, his fatal disease put an abrupt halt to his investigation of the ‘fundamental theory’.