Considering that planet Earth is not anymore at the center, and that the Sun is at the center, why not, inquired Giordano Bruno, why not to go further than Copernicus in our inquiring, that is, to imagine a univers infinite where the solar system would be one among thousand others. This question raised by Bruno generated a revolution in our knowledge, because the entire horizon that maked our culture was destroyed suddenly. Because, for Giordano Bruno, the smallest of the beings and the greatest celestial body had the same weight in the new vision of the universe.