News

  1. Earth

    Space station detectors found the source of weird ‘blue jet’ lightning

    The origins of an enigmatic type of lightning in the upper atmosphere has been traced to a 10-microsecond flash of bright blue light.

    By Maria Temming
  2. Archaeology

    The oldest known abrading tool was used around 350,000 years ago

    A flat-ended rock found in an Israeli cave marks an early technological shift by human ancestors to make stone tools for grinding rather than cutting.

    By Bruce Bower
  3. Science & Society

    Biden administration outlines its ambitious plan to tackle the COVID-19 pandemic

    Epidemiologist Michael Osterholm, an adviser to the Biden transition team, talks about the plans to tackle the public health crisis COVID-19 created.