Is time travel possible?

For many of us, what we know about time travel comes from stories, whether those be books, films or TV shows where characters go from the present to the past to the future and then back again. But is it possible to time travel outside the world of fiction? Tim Peake, Karen Inglis and Ron Mallett sit down with Stevie and Michael to find out whether time travel is possible... See omnystudio.com/listener for privacy information.