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Editorial

Nature 448, 1 (5 July 2007) | doi:10.1038/448001a; Published online 4 July 2007

Parallel worlds galore

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The 50th anniversary of an astonishing scientific hypothesis deserves celebration. So too do the truly astounding tales of a literary genre that anticipated it.

From the evidence of our cover, you could be forgiven for thinking that you are holding a copy of Nature from an alternate universe. And if that were the way your imagination took off, it would be doing just what our cover seeks to do — celebrating the overlap between the world of science and the fables it inspires and feeds on.