News

  1. 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
  2. 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
  3. Quantum Physics

    Physicists smash particle imitators

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

    By Emily Conover
  4. Health & Medicine

    Heartburn drugs can damage cells that line blood vessels

    A type of heartburn drugs called proton pump inhibitors may damage cells that line the blood vessels.