This video is made by mixing hundreds of old, black and white images of stars and galaxies. It is a poetical trip to the dark side of the universe. It plays with the idea of Dark Matter and Dark energy, both concepts stretch the limits of science and mathematics by changing radically our conception of the Universe. In the past it was thought that the hole universe was made out of atoms or subatomic particles but this is wrong. New discoveries have proven the existence of an invisible particle "Dark Matter" that has only been indirectly observed but never captured and whose properties are inferred from its various gravitational effects.This hypothetical substance is believed by most astronomers to account for around five-sixths of the matter in the universe and it´s considered responsible for holding all the normal matter in the universe together. Its estimated that Dark Matter makes up 27% of the Universe, while ordinary Matter makes up just 5%, so what makes up the Other 68%? A new mysterious Dark Energy. This unknown form of Energy is dominating space and its repulsive energy is driving galaxies apart at an accelerating speed. Not much is known about Dark energy but its know how much there is because it affects the Universe's expansion, other than that, it is a complete mystery. Understanding Dark Matter and Dark energy is fundamental to understand the universe.