[REBROADCAST FROM May 12, 2021] In February, NASA's Perseverance rover touched down on the surface of Mars. We look at the line between exploration and colonization. Joining us are Dr. Alice Gorman, an archaeologist and who looks at spacecraft and off-earth landing sites, and Chris Schaberg, an English professor at Loyola University New Orleans specializing in the environmental humanities.

This segment was picked by our Producer Zach Gottehrer-Cohen.