http://www.newsweek.com/nasa-mars-ingenuity-helicopter-flight-delayed-1583163 > NASA's Mars helicopter flight date has been pushed back again due to a software issue identified last week, the space agency said, meaning it won't fly this week. > The helicopter, called Ingenuity, has had the public waiting in suspense as it prepares to take off on Mars for the first time. When it does, it will mark the first powered flight on another world.