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  1. Physics

    Tight deadline

    Light behaves like waves or particles, but it doesn’t know what it will do in advance.

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  2. Space

    Many stars, many planets

    A new study reveals that as many as 30 percent of sunlike stars have close-in, relatively small planets — only 4 to 30 times as heavy as Earth.

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  3. Anthropology

    They’re fake, Indy!

    Scientists find that two rock crystal skulls often attributed to pre-Columbian societies are really modern phonies.

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  4. Space

    Slip-sliding away

    The surface of one of Jupiter’s moons shifts position.

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  5. Humans

    BOOK REVIEW | Naked in the Woods: Joseph Knowles and the Legacy of Frontier Fakery

    Review by Davide Castelvecchi.