News

  1. Space

    Hubble revives

    A plan to switch the Hubble Space Telescope to a backup system works, waking up the telescope after more than two weeks of silence.

    By Ron Cowen
  2. Life

    How Tiktaalik got its neck

    The oldest fossil with a neck, Tiktaalik roseae, shows how animals developed a head for living on land.

    By Susan Milius
  3. Health & Medicine

    Streamlined polio vaccine fights outbreaks

    Back to basics: A simplified polio vaccine works better than the standard approach and overcomes an unforeseen shortcoming in the widely used oral vaccine.

    By Nathan Seppa
  4. Humans

    Bypassing paralyzed nerves

    Implanted electrode helps paralyzed monkey clench its forearm muscles.