British theoretical physicist professor Stephen Hawking attends a symposium during the opening of the PLANCKS event in Amsterdam, on May 23, 2014. PLANKS is a three-day international physics competition organised by students from Utrecht University. / AFP PHOTO / ANP / EVERT ELZINGA / Netherlands OUT (Photo credit should read EVERT ELZINGA/AFP/Getty Images)
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AFP EVERT ELZINGA