Feature

  1. Science & Society

    3-D printed ‘ghost guns’ pose new challenges for crime-scene investigators

    Researchers are analyzing the ballistics of 3-D printed guns and the plastic they leave behind to help forensic scientists track these DIY weapons.

    By Carolyn Wilke
  2. Astronomy

    How an astrophysicist chased a star from the Halo games to real life

    Julián Alvarado Gómez has devoted his career to a star called Iota Horologii. His former life as a Halo video gamer helps fuel that devotion.

    By Lisa Grossman
  3. Humans

    Culture helps shape when babies learn to walk

    The culture in which a baby is raised can accelerate or slow down the development of early motor skills.