Settling in space might seem like a fun otherworldly concept, but it could also bring a number of practical realities to consider like what would space prisons be like? How would we monitor labour laws? And how could we control population growth? All of these are themes and considerations in astrophysicist Dr. Erika Nesvold’s book "Off-Earth: Ethical Questions and Quandaries for Living in Outer Space", and she joins Jonathan to discuss.