News

  1. Health & Medicine

    Self Help: Stem cells rescue lupus patients

    By rebuilding a patient's immune system using his or her own stem cells, doctors can reverse of the course of lupus in severely ill patients.

    By Nathan Seppa
  2. Animals

    Poor Devils: Critters’ fights transmit cancer

    Tasmanian devils transmit cancer cells when they bite each other during routine squabbles, producing lesions that are often fatal.

    By Carolyn Gramling
  3. Astronomy

    Galactic cannibalism

    A highly elongated group of stars is most likely a dwarf galaxy that is being gobbled up by the Milky Way.

    By Ron Cowen
  4. Earth

    2005 was warmest year on record

    Last year's global average temperature was the warmest since scientists began compiling records in the late 1800s.