The study depicts a planetarium at the Humboldt Forum in Berlin. It is a large-scale, self-supporting structure comprising spherical rooms, with the planetarium dome at its centre – the largest floating sphere in the world.
From the outside, the planetarium sphere represents the Earth. Due to the centrifugal force caused by its rotation around its own axis, it has grown into a bulbous shape. Thanks to this bulge, it finds invisible support within the circular spatial structure.
The universe is contained within the planetarium sphere.

Design, model and photography: Benjamin Rieß