News

  1. Health & Medicine

    Marrow cells boost ailing hearts

    Extracting cells from a heart attack patient's bone marrow and then inserting them into the person's heart via a catheter can improve pumping capacity.

    By Nathan Seppa
  2. Earth

    Antibiotics afield

    Antibiotics shed by livestock in manure can end up in crops or bound to soil, where they can foster disease-resistant germs.

    By Janet Raloff
  3. Planetary Science

    Found and lost

    Astronomers who previously announced that they had identified the likely remains of the Mars Polar Lander in images taken by an orbiting spacecraft now say that they were fooled by electronic noise in those images.

    By Ron Cowen
  4. Health & Medicine

    Sleep apnea could signal greater danger

    The nighttime breathing disorder called obstructive sleep apnea might double a person's risk of death or stroke.