News

  1. Earth

    Virtual seismometer

    A new supercomputer simulation of the large quake that struck central China earlier this month could help researchers estimate the size of the ground motions experienced in areas that didn’t have seismic instruments.

    By Sid Perkins
  2. Earth

    Death downwind

    Pollutants generated by human activity in Europe significantly boost ozone concentrations downwind, harming people’s health and causing thousands of premature deaths in North Africa, the Near East and the Middle East.

    By Sid Perkins
  3. Health & Medicine

    High doses

    Emergency room patients are exposed to high doses of radiation from CT scans and other nuclear medicine.

    By Tia Ghose
  4. Life

    Tracing human roots

    Using a new method of data analysis, researchers have found that the Americas were peopled in two different migrations.