IN SPACE - FEBRUARY 26: In this handout image provided by NASA, underside view of the nose of the space shuttle Discovery was provided during a survey of the approaching STS-133 vehicle prior to ... more 
IN SPACE - FEBRUARY 26: In this handout image provided by NASA, underside view of the nose of the space shuttle Discovery was provided during a survey of the approaching STS-133 vehicle prior to docking with the International Space StationFebruary 26, 2011 in Space. As part of the survey and part of every mission's activities, Discovery performed a back-flip for the rendezvous pitch maneuver (RPM). 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 
1 / 29
Getty Images | Photo By NASA / Getty Images
Mon, Feb 28, 2011 4:38 PM EST