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Stars and planetary systems in fiction,  · The notion that there might be inhabited extrasolar planets can be traced at least as far back as Giordano Bruno who, in his De l'infinito, universo e mondi (On the Infinite, Universe and Worlds, 1584), declared that "There are then innumerable suns, and an infinite number of earths revolve around those suns, [These worlds are inhabited] if not exactly as our own, and if not more nobly, at ...

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