News

  1. Ecosystems

    Some polar bears in Greenland survive on surprisingly little sea ice

    “Glacial mélange” could provide a last refuge for some bears as the Earth warms, but climate action is needed to preserve the species, researchers say.

    By Nikk Ogasa
  2. Astronomy

    Neutrinos hint the sun has more carbon and nitrogen than previously thought

    Scientists still don’t know the sun’s exact chemical composition, which is crucial for understanding the entire universe. Neutrinos will help.

    By Ken Croswell
  3. Animals

    Here’s why pumpkin toadlets are such clumsy jumpers

    Tiny Brachycephalus frogs from southern Brazil can leap into the air but have trouble landing.

    By Meghan Rosen
  4. Archaeology

    Ancient bacterial DNA hints Europe’s Black Death started in Central Asia

    Archaeological and genetic data pin the origins of Europe’s 1346–1353 bubonic plague to a bacterial strain found in graves in Asia from the 1330s.