Feature

  1. The Why of Sleep

    Brain studies may reveal the purpose of a behavior both basic and mystifying.

    By Tina Hesman Saey

  2. Sleep Gone Awry

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

    By Laura Sanders

  3. Dying to Sleep

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

    By Tina Hesman Saey

  4. Cosmic dioramas

    Metamaterials may offer windows into other worlds.

    By Elizabeth Quill
  5. Life

    An oceanic endeavor

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

    By Susan Milius
  6. Life

    The unusual suspects

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

    By Susan Gaidos
  7. Life

    Imperfect mimics

    Reprogramming techniques may not produce exact embryonic stem cell replicas.

    By Tina Hesman Saey
  8. Astronomy

    Black hole silhouettes

    Scientists attempt to image a shadow and its tumultuous ring.

    By Charles Petit

  9. Unnatural selection

    Chemists build proteins with parts not in the typical toolkit.

    By Laura Beil

  10. Fire & Ice

    Volcanoes and frozen lands make an explosive combo.

    By Alexandra Witze

  11. Rust Never Sleeps

    A new flare-up in an age-old battle between wheat and a fungal killer.

    By Rachel Ehrenberg

  12. A New View of Gravity

    Entropy and information may be crucial concepts for explaining roots of familiar force.

    By Tom Siegfried