News

  1. Tech

    Everything really is relative

    Two tabletop experiments demonstrate the time-warping principle at the human scale.

    By Rachel Ehrenberg
  2. Earth

    Gulf spill may have been somewhat bigger than feds, BP estimated

    Researchers estimate the oil output using a new technique developed for measuring the output of marine hydrothermal vents.

    By Janet Raloff
  3. Life

    X-rays in 3-D show nanosized details

    A new X-ray microscope technique peers inside materials to reveal their inner nature.

    By Gwyneth Dickey
  4. Humans

    Clues to child sacrifices found in Inca building

    Children killed in elaborate rituals were drawn from all over the South American empire, new research suggests.