NASA Administrator Charles Bolden met with Professor Stephen Hawking, British theoretical physicist, cosmologist, author and Director of Research at the Department of Applied Mathematics and Theoretical Cosmology within the University of Cambridge at the University of Cambridge, Cambridge, United Kingdom, on Friday, June 19, 2015. Photo Credit: Michael Cockerham

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Keywords: administrator, bolden, cambridge, charles, cockerham, hawking, kingdom, michael, nasa, news, stephen, united, university