News

  1. Life

    2012 medicine Nobel honors research on reprogramming adult cells

    John Gurdon and Shinya Yamanaka share this year's prize.

    By Tina Hesman Saey
  2. Humans

    Human-Neandertal mating gets a new date

    Late Stone Age interbreeding between Neandertals and people may have left a mark on Europeans’ DNA.

    By Bruce Bower
  3. Space

    Superfast star spotted orbiting Milky Way’s black hole

    Upcoming gravitational close encounter will test relativity theories in the extreme.

    By Nadia Drake
  4. Life

    Duck-billed dino could slice and dice

    Ancient animal’s teeth were made of six different tissue types.

    By Erin Wayman
  5. Life

    Mouse stem cells yield viable eggs

    Japanese scientists’ technical feat might provide new insights about protecting and extending human fertility.