>> shepard: one week from today shuttle endeavour is set to final voyage into space. second to last launch in shuttle history with nasa retiring the entire fleet. mark kelly is to command the mission. unclear whether his wife gabriel giffords are be well enough to see him off. she is still recovering from the shooting spree in tucson. today the flight director has talked about how commander kelly has been able to prepare for this mission while caring for his wife. >> most of us can't relate to this type of skill set. it's very impressive that he has this ability and most of the folks that come out of the military, fighter pilots, they have to have that skill set to do that job. so, you know, it really it's great that he can do it and, you know, we're really glad to have him back on the team and ready to go fly. >> shepard: liftoff is a week from today, april 29th, 3:47 eastern daylight time which means it falls in "studio b" and