Sarah Sze’s Fallen Sky is made up of 132 individual elements with reflective surfaces of mirror-polished stainless steel that are nestled into the hillside. 
 
Fallen Sky collapses the horizon line by pulling the earth and air toward each other. Instead of marking the landscape, the work is visually merged with the landscape, reflecting and embedded in its surroundings. While looking at Fallen Sky and the land around it, viewers simultaneously experience what is above: passing clouds or birds, variations in light, weather, season, and even the time of day. Sze has described her ever-changing installation Fallen Sky as “filmic,” due to its dynamic nature and ability to depict “how the landscape behaves.” The clay model for Fallen Sky was created through a process of erosion; the resulting work appears as a ruin, frozen in a state of partial deterioration. For Sze, the sculpture “teeters between two extremes,” exploring the tension between material permanence and ephemerality. Fallen Sky conveys a sense of entropy, suggesting that the Earth is fragile and a place in flux.