News

  1. Math

    Here’s how to make an origami torus with the fewest folds possible

    A mathematician found the most efficient way to fold paper into a doughnutlike shape.

    By Emily Conover
  2. Planetary Science

    Europa may not vent water into space after all

    The debate could reopen in 2030 when NASA’s Europa Clipper spacecraft gets the closest view of the icy moon’s surface.

    By Lisa Grossman
  3. Animals

    Homing pigeons may use a surprising navigation mechanism

    How animals navigate by Earth's magnetic field is hotly debated. New research in pigeons points to iron-laden liver immune cells as the compass.

    By Elizabeth Pennisi
  4. Life

    Can DEET attract mosquitoes? A lab study offers clues

    Lab experiments suggest mosquitoes can smell DEET and learn to associate it with food, but it’s unclear whether that happens in the wild.