The Moon Gallery becomes a container for a universe of reflections – allowing for speculative reflections on specular reflections. The inner walls of the gallery cube are covered with mirrored foil. In its centre sits a mirrored sphere, surrounded by a smaller one on a revolving orbit. Countless reflections of the spheres, the observer, and the environment become visible. Reflection is one of the most important and fundamentally characteristic features of human activities. From the Ptolemaic system through the Copernican Revolution and beyond, mankind has changed its perception of the universe many times over. Ida & Dactyl is a symbolic statement for the uniquely human behaviour of evaluating experiences: evoking questions about our intentions, relations, and the consequences of our actions on a global scale and beyond. It is an attempt to transform the experience of the “overview effect”, as described by Astronauts, to a tiny scale to be reflected upon by future generations on the surface of the Moon.