Phil and Stephen discuss whether time travel is possible, including serious (?) efforts to achieve it.\n\nMemorial Day Weekend\n\nWill the LHC Enable Time Travel? Or end the world?*\n\nIndiana Jones and the Kingdom of the Crystal Skull\n\nThe Phoenix landing on Mars\n\nPhysicist Ronald Mallett is trying to build a time machine. Seriously.\n\nMichael Darling sends this article, "Visitors From the Future due This Year."\n\nHope on the Horizon from MIT News\n\n\xa0\n\n[This show first aired May 26 2008]\n\n*Hey, this was several years ago!