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Stephen William Hawking, CH , CBE , FRS , FRSA (8 January 1942 – 14 March 2018) was an English theoretical physicist, cosmologist, and author who was director of research at the Centre for Theoretical Cosmology at the University of Cambridge. [ 6 ][ 17 ][ 18 ] Between 1979 and 2009, he was the Lucasian Professor of Mathematics at Cambridge ...
Observations in the microwave band led to the detection of faint imprints of the Big Bang, a discovery Stephen Hawking called the "greatest discovery of the century, if not all time". Similar advances in observations using gamma rays , x-rays , ultraviolet light , and infrared light have also brought new insights to astronomy.