Robonaut 1

Robonaut 1 is a remotely operated experimental astronaut assistant developed by NASA and DARPA to handle tools and other small objects. In 2011, NASA sent Robonaut 2 to the International Space Station.
 
After onboard testing, a later version of Robonaut 2 may go to work outside the space station, operated by an astronaut who remains inside.
 
Robonaut 2 tweets from the International Space Station as @AstroRobonaut