StarTalk Radio With Neil deGrasse Tyson --What Will It Take to Survive on Mars? Guest: "The Martian" Author Andy Weir

What will it take to survive on Mars? To find out, Neil deGrasse Tyson interviews Andy Weir, best-selling novelist and author of The Martian, which was adapted into a feature film starring Matt Damon as astronaut Mark Watney and received...