Companies from around the world traveled to the Consumer Electronics Show in Las Vegas this month to show off their latest tech. But one category always catches everyone's eye: robots. Ever since Karel Čapek introduced the word "robot" in his 1920 play "R.

Scientists have created a robot that learns lip movements by watching humans rather than following preset rules. The breakthrough could help future robots feel more natural and emotionally engaging.

AI is already at work in the world’s airports. In the future, airports may use robots for tasks currently done by humans.

A robot learned to lip sync after watching hours of YouTube videos - The robot learned the ability to use its 26 facial motors by practicing to imitate human lip motions in front of the mirror

Humanoid robot companies employ armies of human operators to train their machines by doing tasks like squatting and washing dishes.

Forbes contributors publish independent expert analyses and insights. Dr. Jonathan Reichental covers technology in business and society. Toy versions of the popular droids R2-D2 and BB-8, part of the hero team from the movie Star Wars: The Force Awakens.

Morgan Stanley’s former autos analyst has big ideas in his new gig covering the robot economy.