Feature

  1. Physics

    The Ultimate Clock

    Keeping precise time on the universe’s scale.

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  2. Astronomy

    A Shadowed Past

    Understanding of moon’s earliest days gets even murkier.

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  3. Life

    Singled Out

    How to study cells, one by one.

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  4. Planetary Science

    Fertile Frontiers

    Alien-life hunters focus on moons in outer solar system

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  5. Health & Medicine

    The Probabilistic Mind

    Human brains evolved to deal with doubt.

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  6. Science From On High

    Google Earth gives researchers new access.

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  7. Physics

    Last Words

    Tevatron’s data may have more to say, even after the atom smasher shuts down.