IN SPACE - FEBRUARY 26: In this handout image provided by NASA, backdropped by a blue and white part of Earth, space shuttle Discovery approaches the International Space Station during STS-133 ... more 
IN SPACE - FEBRUARY 26: In this handout image provided by NASA, backdropped by a blue and white part of Earth, space shuttle Discovery approaches the International Space Station during STS-133 rendezvous and docking operations February 26, 2011 in Space. Discovery, on its 39th and final flight, is carrying the Italian-built Permanent Multipurpose Module (PMM), Express Logistics Carrier 4 (ELC4) and Robonaut 2, the first humanoid robot in space to the International Space Station. (Photo by NASA via Getty Images) less 
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Getty Images | Photo By NASA / Getty Images
Mon, Feb 28, 2011 4:47 PM EST