NASA has developed a humanoid robot to help the astronauts work better and explore in space. Its called Robonaut built at NASA Johnson Space Center in Houston, Texas. Robonauts are developed to explore in the areas which are dangerous for humans to work. There are four Robonaut designs, and others currently in development. Robonaut 2 or R2 is developed for the International Space Station on space shuttle Discovery as part of the STS-133 mission.
In a single word "Robonaut is a Humanoid version of Astronaut!!! :)"