News

  1. Astronomy

    Astronomers spot another star that flickers like Tabby’s star

    The irregular flickering of star VVV-WIT-07 is reminiscent of Tabby’s star, which brought speculation of alien megastructures.

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  2. Math

    It’s official: We’re redefining the kilogram

    In May 2019, the system of measurement will be upgraded to rely on fundamental constants.

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  3. Health & Medicine

    Lyme and other tickborne diseases are on the rise in the U.S. Here’s what that means.

    A record number of tickborne diseases were reported in the United States in 2017. An infectious disease physician discusses that result and others.

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  4. Climate

    Development near natural areas puts more Californians in the path of wildfires

    As urbanization extends its reach into once-natural areas, more homes and people are at risk from wildfires.