It’s a three-inch tall, green and blue robot, with a white dome on top of its head that lights up. It’s from the planet “Loopitron,” and it landed here to teach children as young as four-years-old how ...

My colleagues and I have built a robot composed of many building blocks like the cells of a multicellular organism. Without a “brain” or a central controller in the system, our robot, dubbed Loopy, ...