This was a fascinating episode (originally broadcast last year) of the Conversations with Richard Fidler podcast. Richard speaks with Josh Richards, a stand-up comedian and official astronaut candidate with the Mars One project, which is a privately backed consortium that plans to populate Mars with humans. He was chosen from 200,000 initial applicants and is now one of the remaining Mars 100 from which two women and two men will be chosen. The final four then embark on training for a decade. This differs from other space expeditions in that the astronauts won’t be coming back to earth. It’s eery, exciting and no longer science fiction. Listen or subscribe to the podcast with the ABC Radio app, via iTunes or RSS. Another memorable episode of this podcast was the interview with Richard Flanagan on Syria’s Great Exodus.