Mars captured humanity's imagination even when it was just a wandering red dot in the night sky. Over history it has been blamed for plagues, the home to invading Martians, and even a possible refuge when our own planet becomes uninhabitable. What can we still learn from the current explorations taking place there and with Trump and Musk in the Whitehouse, will humans set foot there one day soon?

Guest: Dr Matthew Shindell, Curator at the Smithsonian National Air and Space Museum and author of For the Love of Mars (University of Chicago Press)