「線索」是在比利時哈瑟爾特的當代館特展「太空漫遊2.0」的企劃中誕生的作品系列，參與企劃的藝術家必須以「外太空」為題創作。而Julie選擇從泛種論著手，這個假說建立在各種生命形態存於宇宙之中、並以各種星體或甚至依附太空船的有機體藉以流通與傳播，有人推論地球的生命起源也是來自外太空的交錯感染。從此觀點來看，Julie將人類視作外星生物，進而去調查不平凡之處，而她所創作的影像則是一連串線索以證明這些獨特的生命形體存在。

”Traces” is made on the occasion of the ”Out of Space” exhibition at the Z33, house for contemporary art in Hasselt, under the frame of the main exhibition ”Space Odyssey 2.0”. Julie was asked to carry out a project on the theme ”space”. She took the theory of panspermia as her starting point, which says that life on earth originated by contamination from outside. This made her look at the human as an alien, something ”strange” that must be investigated. Julie’s images serve as evidence for this strange form of life and are presented as a collection of traces.