News

  1. Life

    V-flying birds pick efficient flapping pattern

    Ibises time their flaps to catch a boost from a neighbor’s wing.

    By Susan Milius
  2. Ecosystems

    Trees’ growth keeps climbing with age

    Older trees pack on weight faster, making them potentially the best carbon collectors.

    By Meghan Rosen
  3. Astronomy

    Kepler’s surprise: Planet hunter also found supernovas

    NASA's now-defunct Kepler space telescope captured five stellar explosions as they happened.

    By Andrew Grant
  4. Agriculture

    Some bioenergy crops are greener than others

    In the Upper Midwest, switchgrass trumps maize at boosting ecological health.

    By Beth Mole
  5. Astronomy

    Galaxies’ missing mass may hide in gas clouds

    Vast reservoirs of previously undetected gas could account for much of galaxies’ matter, solving a cosmic mystery.