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Stephen Hawking receives the Presidential of Freedom from Barack Obama in 2009.
Stephen Hawking, the most famous scientist in living memory, was supposed to die in his early twenties before having the chance to achieve any great distinction, at the hands of motor neurone disease.
Instead, he was awarded a PhD from Cambridge, a series of professorships, met presidents, popes, appeared on "The Simpsons" four times, and travelled to the edges of space.
He died on March 14, 2018, at the age of 76. These photographs give a taste of the incredible life he lived.