Where in the world is the mysterious ninth planet? What in the world did early humans eat to make them so smart? How in the world does saying "thank you" make you healthier? Find out this week's who, what, where, when and how on Wow in the World Episode 1!See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.