FILE - In this Wednesday Aug. 29, 2012 file photo, British physicist Professor Stephen Hawking speaks during the Opening Ceremony for the 2012 Paralympics in London, Wednesday Aug. 29, 2012. Stephen Hawking has spoken from beyond the grave to warn that science and education are under threat around the world. The words of the scientist, who died in March at 76, were broadcast Monday Oct. 15, 2018 at a London launch event for his final book, "Brief Answers To The Big Questions." (AP Photo/Matt Dunham, file)
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