Highlights

  1. Trilobites

    Photo
    CreditJ. Martin and E. Olson, Northland College

    Meet the Newest Member of the Fluorescent Mammal Club

    The springhare — whose coat glows a patchy pinkish-orange under UV light — joins the platypus and other mammals with this perplexing trait.

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  2. Out There

    PhotoAn artist’s impression of the Cygnus X-1 system, a black hole with its orbiting companion star, HDE 226868, 7,200 light-years from Earth. 
    CreditInternational Centre for Radio Astronomy Research

    A Famous Black Hole Gets a Massive Update

    Cygnus X-1, one of the first identified black holes, is much weightier than expected, raising new questions about how such objects form.

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