RT @NASA: .@astro_reid & #AstroButch completed a #spacewalk today replacing a power regulator & more 1.usa.gov/11pcjuW http://t.co/BkoACzYWw4
RT @NASA: .@astro_reid & #AstroButch completed a #spacewalk today replacing a power regulator & more 1.usa.gov/11pcjuW http://t.co/BkoACzYWw4