What's it going to take to actually get us to Mars? Plus, what to do once you’ve listened to every episode of The Habitat.

The Habitat is a production of Gimlet Media. It’s produced by Lynn Levy, Peter Bresnan, and Megan Tan. Our editors are Alex Blumberg, Jorge Just, Caitlin Kenney, and Blythe Terrell. Music and sound design by Haley Shaw. Mixing by Catherine Anderson. Music supervision by Matthew Boll. Our credits music in this episode is performed by Sammy Miller and the Congregation, and written by David Bowie.

Find the NASA audio archive here: https://archive.org/details/nasaaudiocollection.