News

  1. Space

    Sizing up black holes

    ST. LOUIS—Astronomers are all wound up over a new method for sizing up supermassive black holes found at the cores of galaxies. The method allows researchers for the first time to estimate the weight of these black holes in spiral galaxies up to 8 billion light-years away, or halfway across the universe, reports Marc Seigar […]

    By Ron Cowen
  2. Space

    Outsiders look in

    Astronomers stitch together the most detailed infrared picture of the inner Milky Way.

    By Ron Cowen
  3. Life

    A better look

    A new 3-D microscopy technique offers unprecedented views of cells.

    By Patrick Barry
  4. Earth

    A rapid rise for the Andes

    New evidence suggests that the South American mountain chain shot up 2.5