News

  1. Genetics

    HIV came to NYC at least a decade before virus ID’d

    DNA analysis of early viral strains tracks U.S. debut to early ’70s

    By Tina Hesman Saey
  2. Quantum Physics

    ‘Time crystal’ created in lab

    A chain of ions creates a crystal that repeats in time instead of in space.

    By Emily Conover
  3. Health & Medicine

    Training for parents may lessen some autism symptoms in kids

    Training parents may help with some autism symptoms, a new study suggests.

    By Laura Sanders
  4. Climate

    Wanted: New ways to chill air conditioners, fridges

    A new amendment to the Montreal Protocol will phase out potent greenhouse gases currently used in air conditioners and refrigerators, prompting a hunt for eco-friendly alternatives.