News

  1. Health & Medicine

    Searing the heart for the better

    Electrode-tipped catheter destroys heart tissue to stifle atrial fibrillation, sometimes performing better than meds, study shows.

    By Nathan Seppa
  2. Space

    Mars rover Spirit still running, but only in place

    Six years into its 90-day mission, NASA’s rover becomes a lander

    By Lisa Grossman
  3. Health & Medicine

    Millions of women at risk of malaria during pregnancy

    Potential problems include undetected illness and anemia in mothers, stillbirth and low birth weight in newborns,

    By Nathan Seppa
  4. Chemistry

    New material sops up radioactive cesium

    Isotope catcher could safely store waste from power plants.

    By Lisa Grossman
  5. Humans

    Teacher anxieties may subtract from girls’ math scores

    In first and second grade, female teachers’ insecurity with numbers may correlate to some girls’ doing poorly in math.