News

  1. Astronomy

    Andromeda gets bigger

    A new study reveals that the diameter of the Andromeda galaxy's disk spans some 220,000 light-years, three times as big as had been estimated.

    By Ron Cowen
  2. Paleontology

    Newfound dinosaur wasn’t sticking its neck out

    Fossils of a new, 10-meter-long sauropod species excavated in South America suggest that, unlike most of its massive kin, the creature had a relatively short neck.

    By Sid Perkins

  3. New treatment for extreme grief

    Severe grief may be a unique mental disorder.

    By Bruce Bower
  4. Tech

    Slick trick snags catalyst

    A costly type of catalyst sticks to Teflon, suggesting a new way to recover these chemicals from solutions.