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  1. Life

    How horses lost their toes

    Fossils reveal that as horses evolved to have fewer toes, they also got stronger and faster.

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  2. Physics

    Scientists create the most cubic form of ice crystals yet

    Ice has taken on a strange structure, with its water molecules arranged in nearly perfect cubes.

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  3. Planetary Science

    ‘Death Dive to Saturn’ celebrates the Cassini probe’s accomplishments

    A new documentary, “Death Dive to Saturn,” takes a look back at the Cassini spacecraft’s 13 years at Saturn and what to expect from its final days.

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  4. Astronomy

    Rumors swirl that LIGO snagged gravitational waves from a neutron star collision

    Telescopes seem to be following up on a potential gravitational wave sighting.

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  5. Genetics

    If you’re 35 or younger, your genes can predict whether the flu vaccine will work

    A set of nine genes predicted an effective response to the flu vaccine in young people, no matter the strains.

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  6. Cosmology

    Map reveals the invisible universe of dark matter

    The Dark Energy Survey reports a new tally of the dark universe.

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  7. Anthropology

    Nitty-gritty of Homo naledi’s diet revealed in its teeth

    Ancient humanlike species ate something that damaged its teeth.

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  8. Life

    ‘Darwin’s Backyard’ chronicles naturalist’s homespun experiments

    In the new book Darwin’s Backyard, a biologist explores Charles Darwin’s family life, as well as four decades’ worth of his at-home experiments.

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  9. Tech

    50 years ago, NASA whipped up astronaut waste into rocket fuel

    In 1967, scientists found a way to turn human waste into rocket fuel.

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  10. Tech

    Meet the Bobcat Nanowagon, the world’s smallest monster truck

    Chemists are scratching their heads over the wreckage of minuscule monster trucks.

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  11. Science & Society

    Patience is one virtue scientists must embrace

    Acting Editor in Chief Elizabeth Quill discusses how being patient isn't always easy in scientific work.

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  12. Astronomy

    Inquiries about the moon’s twilight zone, and more reader feedback

    Readers had questions about the moon's tidal locking, quantum communication, microneedles and more.

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