One solution, Molengraft thinks, might lie in “lazy robotics,” a cheeky term to describe machines doing less and taking shortcuts — in other words, behaving more like human beings. He and his students ...

The inability of the U.S. government to definitively identify the aircraft in the recent incidents, however, has some people ...

But most of the sightings are likely airplanes or helicopters rather than ... coded within the radio frequency signals to interpret instructions from an operator and to send data back to them.