Among many others things, the latest installation from Tomás Saraceno depicts gravity. After observing the different levels and planes created by orbiting planets, the artist designed a system of climbable nets and plastic spheres to allow visitors to Düsseldorf's K21 Ständehaus museum to observe their surroundings from a different perspective. The three-leveled steel wire construction is suspended 25 meters above the museum's piazza and features half-a-dozen inflated PVC "spheres."

Non thrill-seeking museum-goers, or those unable to climb through the nets, are an equal part of the installation. A similar sensation of falling and suspension is possible looking up at the climbers, and visitors on the ground provide a necessary context.

"In Orbit" opens this week at K21 Ständehaus.