Every year, tens of thousands of people apply to become NASA astronauts. The vast majority aren’t accepted. But private space exploration could someday offer wider access. Soon, a childhood cancer survivor with an internal prosthetic will become the youngest American in space, as part of the first all-civilian mission. Inspiration4 will orbit Earth for three days and raise $200 million for St. Jude Children’s Research Hospital. Hear the story by subscribing to St. Jude Mission of a Lifetime, wherever you get your podcasts.