How Time Travel Works (Live at SD Comic-Con)

7/26/2012, 12:51:47 PM , duration(0:0:1)
Society & Culture
How does time travel work? Could it ever cross the line from science fiction into science fact? Join Josh and Chuck -- along with a live audience at the 2012 Comic-Con -- as they explore the ins and outs of time travel.<br><br> Learn more about your ad-choices at <a href=''></a>