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CAPE CANAVERAL, Fla. -- CAPE CANAVERAL, Fla. -- In the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, Ron Diftler, NASA Robonaut project manager, describes the movements of the dexterous humanoid astronaut helper, Robonaut (R2). R2 will fly to the International Space Station aboard space shuttle Discovery on the STS-133 mission. Although it will initially only participate in operational tests, upgrades could eventually allow the robot to realize its true purpose -- helping spacewalking astronauts with tasks outside the space station. Photo credit: NASA/Jim Grossmann