Feature

  1. Little by Little

    As food allergies proliferate, new strategies may help patients ingest their way to tolerance.

    By Laura Beil
  2. Psychology

    Morality Play

    Universal concerns, not cultural values, may shape kids’ developing notions of right and wrong.

    By Bruce Bower
  3. Space

    The Status Quark

    Murray Gell-Mann reflects on matter’s building blocks and scientists’ resistance to new ideas.

    By Tom Siegfried

  4. Disaster Goes Global

    The eruption in 1600 of a seemingly quiet volcano in Peru changed global climate and triggered famine as far away as Russia

    By Sid Perkins
  5. Earth

    Shaky Forecasts

    Despite past failures, geophysicists think earthquake prediction might still be possible.