He is also famous for his work on the theory of relativity. Eddington wrote a number of articles that explained Einstein's theory of general relativity to the English-speaking world. World War I severed many lines of scientific communication and new developments in German science were not well known in England. He also conducted an expedition to observe the solar eclipse of 29 May 1919. That gave one of the earliest confirmations of general relativity.The observations showed that light from stars which passed close by the Sun was slightly bent towards the Sun. This was predicted by the general theory of relativity. He became known for his popular expositions and interpretations of the theory. 