News

  1. Earth

    Wildfires and farm fertilizer use are fueling ozone pollution

    Fires and agricultural soils can rival cars and factories in emitting chemicals that lead to ozone, making it hard to meet air quality standards.

    By Rachel Berkowitz
  2. Animals

    Stinky penguin poop strikes fear into the hearts of Antarctic krill

    A chemical in Adélie penguin guano may have cued krill to take evasive maneuvers in lab tests.

    By Maria Temming
  3. Cosmology

    A map of 14 million galaxies and quasars deepens a dark energy mystery

    The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.

    By Emily Conover
  4. Tech

    A hopping robot shows off its squirrel-like skills

    Salto the jumping robot can take a flying leap and land on a narrow pipe — just like a squirrel soaring from branch to branch.