Blue Skies evokes the mental representation of trauma and questions how a memory can be preserved before it is forgotten. For six years, Kusters explored the former Third Reich, travelling 177,828 km to capture the blue skies above each of the 1,078 documented Nazi concentration camps. To this day, many sites remain unknown. In order to locate each site and ensure that the sky above was blue, Kusters consulted a GPS and real-time infrared satellite images, stamping the camp coordinates and estimated number of victims on his images. The images collected by the artist will eventually fade away, but the number will remain. The installation opens a space for reflection on the hiatus between the specificity of the Polaroid and its abstract trace, the blue skies above the camps.