News

  1. Climate

    Rate of atmospheric carbon dioxide rise unprecedented

    The current rate of carbon dioxide entering the atmosphere is unprecedented over at least the last 66 million years, new research shows.

    By Thomas Sumner
  2. Planetary Science

    Origin date established for Mercury’s magnetic field

    A 3.8-billion-year-old magnetic field on Mercury provides clues as to how the once volcanically active planet evolved.

    By Christopher Crockett
  3. Health & Medicine

    Kids who have had measles are at higher risk of fatal infections

    Measles infection leaves kids vulnerable to other infectious diseases for much longer than scientists suspected.

    By Meghan Rosen
  4. Psychology

    On Facebook, you control the slant of the news you choose

    Facebook users shield themselves from opposing political ideas more than the site does.