Feature

  1. Life

    Imperfect mimics

    Reprogramming techniques may not produce exact embryonic stem cell replicas.

    By Tina Hesman Saey
  2. Astronomy

    Black hole silhouettes

    Scientists attempt to image a shadow and its tumultuous ring.

    By Charles Petit

  3. Unnatural selection

    Chemists build proteins with parts not in the typical toolkit.

    By Laura Beil

  4. Fire & Ice

    Volcanoes and frozen lands make an explosive combo.

    By Alexandra Witze

  5. Rust Never Sleeps

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

    By Rachel Ehrenberg

  6. A New View of Gravity

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

    By Tom Siegfried

  7. In field or backyard, frogs face threats

    Amphibians and other sensitive groups encounter chemicals across the landscape.

    By Susan Milius

  8. DNA on the move

    The latest advances from the field of DNA nanotechnology include nanobot ‘spiders’ learning how to walk and even do some work.

    By Gwyneth Dickey

  9. A matter of solidity

    A material that oozes through itself presents a super physics puzzle.

    By Alexandra Witze
  10. Earth

    Scour power

    Big storms shift coastal erosion into overdrive.

    By Sid Perkins

  11. Cancer’s little helpers

    Tiny pieces of RNA may turn cells to the dark side.

    By Tina Hesman Saey
  12. Space

    Mining for Missing Matter

    In underground lairs, physicists look for the dark stuff.

    By Ron Cowen