In this photo provided by NASA, the SpaceX Dragon capsule is berthed at the International Space Station Sunday April 20, 2014 as photographed by the Expedition 39 crew members onboard the orbital outpost. Two NASA astronauts aboard the International Space Station will conduct a spacewalkWednesday April 23, 2014 to replace a failed backup computer relay system on the space station's truss. (Photo by AP Photo/NASA)
|