guy bluford had the same effect on the african-american community. by the time the shuttle program ended in 2011, about 20% of the astronaut corps had been women. about 12% had been african-american. women and african-americans had served in every role. they had been pilots, commanders, space walker, mission scientist. they had demonstrated very well that people who are capable, who have the right skills and the right drive and motivation could be successful astronauts. the last big task for the space shuttle was actually its original task, the task with which it was designed, with that large pay load bay, and that was construction of the international space station. it took about 40 missions to assemble the international space station in orbit. starting in 1999 and completing in 2011. the space station as it exists now is depicted here in the gallery in a model that we have suspended. it's a 1 to 100 scale model. the actual international space station is the size of a football field, from end zone to end zone and from sideline to sideline. that give

guy bluford had the same effect on the african-american community. by the time the shuttle program ended in 2011, about 20% of the astronaut corps had been women. about 12% had been african-american. women and african-americans had served in every role. they had been pilots, commanders, space walker, mission scientist. they had demonstrated very well that people who are capable, who have the right skills and the right drive and motivation could be successful astronauts. the last big task for the space shuttle was actually its original task, the task with which it was designed, with that large pay load bay, and that was construction of the international space station. it took about 40 missions to assemble the international space station in orbit. starting in 1999 and completing in 2011. the space station as it exists now is depicted here in the gallery in a model that we have suspended. it's a 1 to 100 scale model. the actual international space station is the size of a football field, from end zone to end zone and from sideline to si sideline. that g