Since the early days of human space programs, every single space endeavor has encountered a continual hitchhiker: fungus. In tonight's episode, Ben, Matt and Noel explore the strange persistence of fungal life in space, asking: What if the best astronauts aren't human at all?They don't want you to read our book.: https://static.macmillan.com/static/fib/stuff-you-should-read/See omnystudio.com/listener for privacy information.