Retirees resume their moves to less taxing climes

June 27, 2014 05:14 PM

UPDATED June 27, 2014 05:15 PM

More Videos

  • Drone race: Human versus artificial intelligence

    In a world fraught with obstacles, who will prevail in a race against time: human or machine? See what happens when JPL engineers race a drone controlled by artificial intelligence against another guided by a professional human pilot.