In this March 3, 2011 photo provided by NASA, astronauts Eric Boe, left, and Scott Kelly move the crate containing Robonaut 2, better known as R2, the first humanoid robot in space, at the International Space Station. The 220-mile-high (354-kilometer-high) unveiling of R2, the first humanoid robot in space, is being moved up at the urging of the president of the United States. Astronaut Catherine Coleman said Friday, March 4, 2011 that she and the 11 other humans aboard the shuttle-station complex want to get R2 out of its packing material as soon as possible. R2, flew to the International Space Station aboard Discovery and will stay behind when the shuttle leaves Monday. (AP Photo/ESA/NASA)

In this March 3, 2011 photo provided by NASA, astronauts Eric Boe, left, and Scott Kelly move the crate containing Robonaut 2, better known as R2, the first humanoid robot in space, at the International Space Station. The 220-mile-high (354-kilometer-high) unveiling of R2, the first humanoid robot in space, is being moved up at the urging of the president of the United States. Astronaut Catherine Coleman said Friday, March 4, 2011 that she and the 11 other humans aboard the shuttle-station complex want to get R2 out of its packing material as soon as possible. R2, flew to the International Space Station aboard Discovery and will stay behind when the shuttle leaves Monday. (AP Photo/ESA/NASA)