News

  1. Life

    Gut microbe may challenge textbook on complex cells

    Science may finally have found a complex eukaryote cell that has lost all of its mitochondria.

    By Susan Milius
  2. Life

    How to trap sperm

    Lab-made beads can trick and trap sperm, potentially preventing pregnancy or selecting sperm for fertility treatments.

    By Sarah Schwartz
  3. Health & Medicine

    Healthiest weight just might be ‘overweight’

    The body mass index tied to lowest risk of death has risen since the 1970s. It now falls squarely in the “overweight” category.

    By Esther Landhuis
  4. Quantum Physics

    Physicists smash particle imitators

    A new quasiparticle collider smashes together the faux-particles that appear in solid materials.