The exhibition is a collaboration between the NHM Vienna and the Institute of High Energy Physics (HEPHY) of the Austrian Academy of Sciences. What does the universe consist of? Where does the universe end? How many dimensions are there in the universe? What is the universe expanding into? These and similar questions have bothered humans for centuries and still bring us to the limits not only of our knowledge but also of our imagination. 7reasons was responsible for the installation of the projection systems and the programming of the interactive application “Dark matter-halos“.