Steven Hawking is the most outstanding physical scientist after Albert Einstein. He was born is Oxford, and studied in Oxford and Cambriage university successively, mainly studying maths, physics and cosmography. In 193, Hawking was diagnosed with ALS. The doctor said he could live no more than two years. after a period of disappointment and depression, he continued gis research in cosmography. later, he made prominent progress in his research of big bang and black hole.