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:Iceland volcano ALERT: First eruption expected in CENTURIES which could spark travel chaosWhy Is Fashion Having an Astral Moment?Trilobites: Why We ‘Hear’ Some Silent GIFsScientists close to developing nuclear fusion STAR with same energy as SUN to power homesTrilobites: Actually, You Do Want to Know How This Sausage Gets MadeTrilobites: Tracking Dolphins With Algorithms You Might Find on Facebook