Stephen Hawking dies at age 76

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A flag flies at half mast over Gonville and Caius College at the University of Cambridge following the death of Professor Stephen Hawking, in Cambridge, Britain, on March 14, 2018. Renowned British physicist Stephen Hawking died peacefully at home in the British university city of Cambridge in the early hours of Wednesday at the age of 76, his family spokesman said. (Xinhua/Isabel Infantes)