Life imitates art

Okay, so think back to the original Star Wars movie, where they are on the Falcon and Luke is practicing with the light saber the first time. To practice, there was this little ball flying around shooting lasers at him:

Now fast forward to today: check out these little robots on the International Space Station:

They fly around inside the station (the black knobby things are carbon dioxide thrusters) and are being used to develop control software/algorithms for unmanned rendezvous and docking.

Pretty neat.