News

  1. Chemistry

    How to brew a better espresso, according to science

    To make more consistent and affordable espresso shots, use fewer beans and grind them more coarsely, a new study says.

    By Maria Temming
  2. Paleontology

    A squid fossil offers a rare record of pterosaur feeding behavior

    150 million years ago, a pterosaur attempted to snatch a squid from the ocean surface and lost a tooth in the process.

    By John Pickrell
  3. Health & Medicine

    How the new coronavirus stacks up against SARS and MERS

    Coronaviruses are a diverse family that may be becoming more threatening to people.

    By Tina Hesman Saey
  4. Health & Medicine

    Levels of certain proteins in the blood may act as concussion biomarkers

    College athletes who suffered concussions had elevated blood levels of three proteins, a potential chemical sign that one day may aid diagnosis.