News

  1. Giardia Bares All: Parasite genes reveal long sexual history

    Sexual reproduction started billions of years ago, as soon as life forms that have nuclei and organelles within their cells branched off from their structurally simpler ancestors.

    By Christen Brownlee
  2. Health & Medicine

    Urine test signals pregnancy problem

    A simple urine test can warn women that they have an increased risk of preeclampsia, a dangerous complication of pregnancy.

    By Nathan Seppa
  3. Tech

    Congealing useful oddballs

    A device for manipulating liquid droplets turns out to have the unexpected ability to fabricate tiny, solid balls with unusual, and potentially useful, patterned structures inside.

    By Peter Weiss
  4. Chemistry

    Building artificial cells from scratch

    Scientists have created artificial cells that can live and produce proteins as their natural counterparts do, but can't replicate.