Time travel: Stephen Hawking’s last bombshell theory explained STEPHEN Hawking wrote in his posthumous book that tackling the paradox of time travel is a “very serious question”. Now one physicist has explained Prof Hawking’s theory. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Global Health: Widespread Testing Begins on Malaria Vaccine That Is Only Partly EffectiveGlobal Health: Measles Outbreak Infects 695, Highest Number Since 2000A Respite From Record Losses, but Tropical Forests Are Still in TroubleAsteroid WARNING: NASA make plans for ‘Armageddon’ scenario of asteroid STRIKING earthMeasles WARNING: Fears 'numbers will rise' as US suffers BIGGEST outbreak in 25 YEARSMarsquake meaning: What is a marsquake? What does earthquake on Mars MEAN?