Feature

  1. Humans

    Simple Heresy

    Rules of thumb challenge complex financial analyses 

    By Bruce Bower
  2. 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
  3. Astronomy

    Stellar oddballs

    Kepler spacecraft finds much more than exoplanets.

    By Charles Petit

  4. Into orbit

    MESSENGER pays a yearlong visit to Mercury.

    By Ron Cowen

  5. Dawn of the Dinosaurs

    Paleontologists probe the majestic reptiles’ origin and rise.

    By Alexandra Witze
  6. Health & Medicine

    Going Under

    While every anesthetic drug has its own effect, scientists know little about how the various versions work on the brain to transport patients from normal waking awareness to dreamless nothingness.