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  1. Astronomy

    Kepler shows small exoplanets are either super-Earths or mini-Neptunes

    The final catalog from the Kepler space telescope splits Earthlike exoplanets into two groups and pinpoints 10 new rocky planets in the habitable zone.

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  2. Genetics

    DNA reveals how cats achieved world domination

    Analysis of 9,000 years of cat remains suggests two waves of migration

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  3. Psychology

    African farmers’ kids conquer the marshmallow test

    Nso farmers in Cameroon groom kids for self-control that Western peers often lack.

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  4. Astronomy

    Eclipse watchers catch part of the sun’s surface fleeing to space

    A serendipitous eruption during a solar eclipse showed relatively cool blobs of plasma, wrapped in a million-degree flame, streaming from the sun.