Tomás Saraceno adopts the term ‘biosphere’ — used to describe both the global ecology and the interrelation of all living systems — for his suspended sculptures. Walking among them is like passing through a model of the world at both macro and micro scales. The Biospheres function as abstractions of cells or atoms, a network of brain cells or a molecule of H2O. The artist himself is fascinated by a theory that galaxies form like water droplets on the strands of a spider’s web, gathering on long threadlike filaments stretched between voids in space. Across his broader practice, Saraceno adopts such metaphors to imagine a future global society where all living ecosystems are contained within a sphere, water is recycled in a closed loop and entire civilisations become airborne. He asks us: what if nations could shift like vapour or join in networks like the spider’s web?