Remembering that on Ash Wednesday, Feb 17 1600, Giordano Bruno, condemned as a heretic by the Roman Inquisition, in part for his cosmological views, was publicly burned in the Campo de Fiori, and his ashes thrown in the Tiber. (Ashes to ashes.)
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He believed Copernicus, who denied the idea of earth as center of the universe, did not go far enough. Bruno posited the idea of an infinite universe with an infinity of worlds, with intelligent creatures. He said in the future we might develop means to visit these worlds.