News

  1. Animals

    Winter road salting reshapes next summer’s butterflies

    Winter road salt treatments boost sodium in roadside plants and alter development for monarch butterflies.

    By Susan Milius
  2. Life

    Oxytocin stimulates repair of old mice’s muscles

    The naturally produced hormone oxytocin, well known for its role in social bonding, may help heal injured muscles in the elderly.

    By Tina Hesman Saey
  3. Astronomy

    Stopping starlight may bring other Earths into focus

    Two new telescope concepts compete for NASA’s approval, in hopes of taking the first picture of a life-bearing exoplanet.

    By Christopher Crockett
  4. Agriculture

    Fertilizer produces far more greenhouse gas than expected

    Farmers’ overuse of nitrogen-based fertilizers may explain previously puzzling high emissions of nitrous oxide.