Meet the robonauts: NASA's humanoid robots

The humanoid robot is spacewalking to perform routine maintenance on the outside of the station. Perhaps it's re-connecting wires, taking down experiments, or making needed upgrades to the outpost. SEE ALSO: NASA's first African-American Space Station crewmember is your new role model Right now, human astronauts and cosmonauts are responsible for all tasks -- including experimentation, routine maintenance and cleaning -- on the orbiting space laboratory. Instead of having a robot fix a toilet, for example, astronauts need to be trained as space toilet plumbers in case the lavatory on the station breaks down (which it often does). NASA's Robonaut project, however, aims to change all of that.