Feature

  1. Sleep Gone Awry

    Researchers inch closer to causes, cures for insomnia, narcolepsy.

    By Laura Sanders

  2. Dying to Sleep

    Getting too little sleep can impair body and brain and could even be deadly.

    By Tina Hesman Saey

  3. Cosmic dioramas

    Metamaterials may offer windows into other worlds.

    By Elizabeth Quill
  4. Life

    An oceanic endeavor

    Marine census catalogs creatures that roam all corners of the seas.

    By Susan Milius
  5. Life

    The unusual suspects

    With no obvious culprit in sight, geneticists do broader sweeps to identify autism’s causes.

    By Susan Gaidos
  6. Life

    Imperfect mimics

    Reprogramming techniques may not produce exact embryonic stem cell replicas.