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Calendario cosmico stile Carl Sagan, grafico dell'evoluzione dell'universo Tela. Poster scientifico, poster spaziale, astronomia, regali scientifici, regali nerd - Etsy Italia
COSMOS - Cosmic Calendar | The cosmic calendar visualizes the chronology of the universe, scaling approximately 13.8 billion years into one single year for perspective. | By National Geographic TV | This
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