Feature

  1. Dawn of the Dinosaurs

    Paleontologists probe the majestic reptiles’ origin and rise.

    By Alexandra Witze
  2. 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.

    By Susan Gaidos

  3. Yawn

    Latest research awakens debate over why people can’t keep their mouths closed.

    By Laura Sanders

  4. Atomic Anatomy

    A century ago, Ernest Rutherford inaugurated the nuclear age.

    By Tom Siegfried

  5. Moved by Light

    Lasers push everyday objects into the quantum world.

    By Devin Powell

  6. Crushing Cancer’s Defenses

    Vaccine approval offers hope while other armies muster.