News

  1. Planetary Science

    Gas, not planets, may be source of rings around stars

    Interactions between gas and dust may form elliptical patterns.

    By Jessica Shugart
  2. Life

    Bacterial molecules may prevent inflammatory bowel disease

    Common compounds produced by gut microbes quench colitis in mice.

    By Jessica Shugart
  3. Space

    Interstellar chemistry makes use of quantum shortcut

    Reactions in the frigid cold of space are sped by a quirk of physics, researchers propose.

    By Andrew Grant
  4. Anthropology

    Agriculture’s roots spread east to Iran

    Dig supports prolonged development of domesticated crops at ancient sites across the Fertile Crescent.

    By Bruce Bower
  5. Health & Medicine

    People may have evolved to fight cholera

    People in Bangladesh have genetic variations that might defend against the disease.