News

  1. Astronomy

    X-ray images highlight galaxy collisions

    A new study provides graphic evidence that X-ray observations may be the best way to identify ancient collisions between galaxies.

    By Ron Cowen
  2. Health & Medicine

    SARS vaccine triggers immunity in monkeys

    An experimental vaccine against the SARS virus shows promise in a test on monkeys.

    By Nathan Seppa
  3. Tech

    Gene Screen: Ultrasensitive nanowires catch mutations

    Researchers have devised a nanowire sensor that binds to DNA molecules and produces an electrical signal almost instantaneously.

    By Alexandra Goho
  4. Health & Medicine

    Pivotal Protein: Inhibiting immune compound slows sepsis

    By restraining the action of an immune system protein that can run amok, scientists experimenting on mice have reversed the course of severe sepsis.