In this episode from 2017, Brian Cox and Robin Ince transport the cage to the Starmus Festival in Trondheim, Norway, for an extraordinary gathering of astronauts. They are joined on stage by NASA astronauts Sandra Magnus and Terry Virts, ESA astronaut Claude Nicollier, and Apollo 16's Charlie Duke, one of the last people to have walked on the moon. They talk about their personal journeys to fulfill their long-held dreams, and literally reach for the stars. They hear from Charlie Duke about the extraordinary Apollo missions he was part of, including his role as Capsule Communicator for the very first moon landing, before taking his own first steps on the lunar surface as part of Apollo 16. They explore the different experience of astronauts from Charlie's era, and those who now become residents of space, spending months and months aboard the International Space Station, and the challenges each mission brings. And Claude Nicollier describes his epic spacewalk to repair the Hubble Telescope.

Producer: Alexandra Feachem.