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  1. Humans

    From the November 13, 1937, issue

    Reconstructions of European dwellings from 2 and 4 millennia ago, an asteroid traveling at record-breaking speed, and a headlight that tilts as the car goes up or down a hill.

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  2. Climate of Debate

    Want to get working climate scientists’ take on new and developing climate science? This site—developed for the interested public and journalists—aims “to provide a quick response to developing stories and provide the context sometimes missing in mainstream commentary. The discussion here is restricted to scientific topics and will not get involved in any political or […]

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  3. Flawed Stem Cells Yield Fragile X Clues: Researchers study genetic disorder via discarded embryos

    The most common inherited cause of mental retardation arises when a mutated gene is shut down early in embryonic development.