News

  1. 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
  2. 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.

    By Sid Perkins
  3. Earth

    Manganese can make water toxic

    Drinking water contaminated with manganese can subtly limit a child's intellectual development.

    By Janet Raloff
  4. Health & Medicine

    Rotavirus vaccines pass big safety tests

    The largest industry-funded medical trials in history have found that two new vaccines are both safe and effective against life-threatening childhood diarrhea caused by rotavirus.