Mary Roach has written several books that dive into the weirdness of science topics like dead bodies, sex, and digestion. But how does she use her curiosity to write a full-fledged book, especially when she doesn’t have a background on the subject? This week, Mary joins the pod and talks about the firsthand experiences and research that goes into her books, especially in her book Packing for Mars and its adaptation Packing for Mars for Kids. She touches on how she comes up with book-worthy ideas to explore and why she approaches nonfiction with a distinctive, humor-filled voice. Plus, she discusses some of the questions you may have about space exploration, like puking in your spacesuit, whether people bathe in space, and what it feels like to be in zero gravity.