News

  1. Gene therapy tool would target free radicals

    New method would make the most of the balance between the good and bad of free radicals, offering a potential treatment for cardiovascular diseases.

    By Patrick Barry
  2. Earth

    Tough meteorite made a big impact

    The stony meteorite that landed in a remote portion of Peru in September 2007 was traveling abnormally fast when it struck and blasted a crater that was unusually large for the its size, new analyses indicate.

    By Sid Perkins
  3. Life

    X chromosome is extra diverse

    Men who father children with multiple women are responsible for “extra” diversity on the X chromosome, a new study of six different populations suggests.