Guide to my exhibition Cadastral at Fotografisk Center in Copenhagen (Part 8): The oldest work included in the exhibition is ‘Per Pulverem Ad Astra’, which I made in 2007. Even though it was made a long time ago, a lot of its ideas and concerns are echoed in other works in the exhibition. To make Per Pulverem Ad Astra (which means through the dust to the stars in Latin), I downloaded photographs taken on the planet Mars from NASA’s website. I then converted these digital images to 35 mm analogue negatives. These negatives were left lying around my apartment to gather dust. A few weeks later I brought them to the darkroom and printed them. The resulting dust-marked images are a combination of extreme distance and extreme proximity, a simultaneous gravitational pull towards the earth, to the dust around – and by extension, towards death – and a pull upwards, into space, towards the attraction (both physical and fantastical) of Mars. The series invites debate around ownership, national borders and colonization. Per Pulverem Ad Astra 2007 Unique C-type photographs Source images courtesy of NASA/JPL-Caltech Within the exhibition, 'Per Pulverem Ad Astra' hangs opposite the ‘Cave' works. Installation photos by Troels Jeppe and myself. The exhibition is supported by The Obel Family Foundation, The Danish Arts Foundation, Neustart Kultur, Stiftung Kunstfonds, The Berlin Senate Department for Culture and Europe and the Swedish Embassy in Copenhagen.