Geodesic dome penetrable  in cardboard
petri boxes, participatory piece

This geodesic cardboard structure offers a glimpse of the multiplicity of life forms and symbioses in the making. During collaborative workshops, Petri dishes are seeded with micro-organisms from human hands (by placing palms on agar-agar), followed by samples from the bark of various nearby trees (bark micro-organisms).
Each person marks his or her name and that of the tree on the lid of the box. Exchanges, invisible at first, appear within a few days. They are the result of the meeting of these two colonies of micro-organisms.
Little by little, the meeting of these two mutually alien living environments is made visible, as scientist Matthias Rillig calls “community coalescence”. The cohabitation of micro-organisms from hands and tree trunks evolves over the course of the exhibition. The Constellations dome is an invitation to contemplate the infinitely small as a planetarium explores the infinitely large, and to reflect on how living beings interact.