by piece over the last 16 years. and you can thank what's called the canada arm 2 for that. it built the iss while in orbit and grabs incoming spacecraft docking them to the station. there are no do-overs in space, meaning the canada arm 2 can't miss. so it's robotics are some of the most precise and accurate technologies you can find. that same technology used on the space station was applied to a surgical robot here on earth, a robot that wants to remove the word "inoperable" from our vocabulary. outside an operating room at foothills hospital in calgary, canada, dr. garnett sutherland preps his patient. >> we've gone through everything and you're going to have the operation on the right side. >> reporter: lee is 22 years old and has an aneurysm. today he is undergoing brain surgery to remove it. but it's what's happening alongside the surgeons that