FILE - This is a Saturday, June 16, 2012 file photo of Physicist and best-selling author Stephen Hawking appears in Seattle. Hawking was taking part in the Seattle Science Festival Lum

 

              FILE - This is a Saturday, June 16, 2012  file photo of Physicist and best-selling author Stephen Hawking appears in Seattle. Hawking was taking part in the Seattle Science Festival Lum
FILE - This is a Saturday, June 16, 2012 file photo of Physicist and best-selling author Stephen Hawking appears in Seattle. Hawking was taking part in the Seattle Science Festival Luminaries Series. Physicist Stephen Hawking has dropped plans to attend a major conference in Israel in June, prompting criticism Wednesday May 8, 2013 from Israeli officials who believe he has joined a boycott organized to protest Israel's treatment of the Palestinians (AP Photo/Ted S. Warren)