This week on SPEXcast, we sit down with Mads Wilson, communications lead for Copenhagen Suborbitals, a volunteer space program based in Denmark with the ambitious goal of launching a human into orbit. We delve into the history of CopSub with Mads, reflecting on the engineering process for their past and future rockets, and the unique challenges and benefits of volunteering engineering blood, sweat and tears into a space program open to (almost) all. You can check out additional links and references at https://blog.spexcast.com/copenhagen-suborbitals-mads-wilson .