News

  1. Life

    Penguin declines may come down to krill

    Lack of food appears to be hurting birds on the Antarctic Peninsula.

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  2. Physics

    Screwy symmetry revealed

    Math trick that reverses spirals and other shapes that twist and turn should provide new ways to understand and design materials.

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  3. Math

    Cells take on traveling salesman problem

    With neither minds nor maps- chemical-sensing immune players do well with decades-old mathematical problem, a computer simulation reveals.

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  4. Space

    Baffling blowup in distant galaxy

    A high-energy blast has gone on for 11 days, puzzling astronomers as to its source.

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  5. Space

    Pioneer puzzle pinned on thermodynamics

    Waste heat, not exotic physics, is slowing two 1970s-era space probes down more than would be expected, a new study claims.