Satellites was designed as physically executable procedure for making light sculptures that manifests differently every time it is made.
The final result is system for making intended to empower the end user as an active and necessary participant in the design process rather than a passive consumer.
Each satellite contains two different kinds of algorithmically-generated 3D-printed joints, each made by spinning hollow cylinders around a point. The cylinders are rotated according to lunar positioning data at the time of 3D printing. The mobiles are then manually-assembled.
Here are the instructions for making your own personal Satellite.