NEBULA faces us with an immense mass but at the same time is impalpable, evanescent. It pushes us toward exploration, as well as outside its massive volume. NEBULA puts us in front of the unknown of space and silence, as well as of the cold geometric calculation, that works by points, numers and coordinates. NEBULA is the impending sky above us, but also the proof of the excellence of our intellect, able to submit that space to geometry. We are forced to ask ourselves what’s the limit in which we can handle cosmos with science and beyond which it is unknown and inviolable again.