JSC2010-E-090923 (15 March 2010) --- One of Robonaut 2?s arms is disassembled to prepare the robot for electronics upgrades. Because R2 was designed as a prototype, some changes were necessary to ready it for life on the International Space Station. R2 is scheduled to launch into space aboard Discovery on the STS-133 mission. Photo credit: NASA or National Aeronautics and Space Administration