Feature

  1. Humans

    Counterfeit Crackdown

    New scientific tools help tell fake meds from the real thing.

    By Rachel Ehrenberg
  2. Space

    Good-bye Shuttle

    Looking back at the space plane’s scientific legacy

    By Alexandra Witze
  3. Humans

    Simple Heresy

    Rules of thumb challenge complex financial analyses 

    By Bruce Bower
  4. Health & Medicine

    Healthy Aging in a Pill

    To extend life span, scientists envision a drug that mimics the benefits of a near-starvation diet.

    By Laura Beil
  5. Astronomy

    Stellar oddballs

    Kepler spacecraft finds much more than exoplanets.

    By Charles Petit

  6. Into orbit

    MESSENGER pays a yearlong visit to Mercury.