News

  1. Planetary Science

    Solar wind probably leaches Mars’ lower atmosphere

    Initial results from NASA's MAVEN probe may help explain how Mars has lost its atmosphere: The solar wind penetrates the Red Planet’s atmosphere and fuels escaping gas.

    By Thomas Sumner
  2. Math

    Math to match pedestrian behavior is all about timing

    The best-ever simulation of pedestrians moving through a crowd relies on a new formula that encapsulates people’s ability to anticipate collisions.

    By Andrew Grant
  3. Life

    New tree of life confirms strange history of birds

    A genetic analysis supports some odd groupings in the bird tree of life, showing a lot of convergent evolution in avian history.

    By Susan Milius
  4. Earth

    Mega volcanism indicted in dinosaur demise

    Precision dating strengthens idea that climate-altering Deccan volcanism contributed to dinosaur extinction.