The European Space Agency (ESA) is Europe’s gateway to space, and has been shaping the development of Europe’s space capability since 1975. ESA has 22 Member States and over 5000 employees. Among its many components is the European Astronaut Center (EAC), located in Cologne, Germany. EAC serves as a training center for astronauts, provides astronauts with medical support, and communicates with astronauts in space. Recently, it has also become home to the young and dynamic Spaceship EAC initiative, which focuses on human space exploration beyond the low Earth orbit. The team currently studies the sustainable exploration of our Moon by addressing several challenges, including additive manufacturing for tools and spare parts.