News

  1. Earth

    Ancient volcanoes destroyed ozone

    Prehistoric eruptions gave off huge amounts of a gas that erodes the UV-blocking atmospheric layer.

    By Alexandra Witze
  2. Health & Medicine

    Fish oil components may not benefit everyone’s heart

    A six-year study finds that omega-3 fatty acids don't lower heart risk in people with diabetes.

    By Nathan Seppa
  3. Life

    You have grandpa’s chromosome tips

    Older fathers pass more gene-protecting DNA to their paternal grandkids.

    By Tina Hesman Saey
  4. Physics

    The electric flour voltage test

    Granular materials give off a zap just before slipping, a finding with potential implications for sensing the starts of silo disasters or earthquakes.