This frame grab made available by NASA TV shows a view of the SpaceX Dragon capsule on the end of the International Space Station's robotic arm, Sunday, March 3, 2013. SpaceX, the Calif

 

              This frame grab made available by NASA TV shows a view of the SpaceX Dragon capsule on the end of the International Space Station
This frame grab made available by NASA TV shows a view of the SpaceX Dragon capsule on the end of the International Space Station's robotic arm, Sunday, March 3, 2013. SpaceX, the California-based company founded by billionaire Elon Musk, had to struggle with the Dragon following its launch Friday from Cape Canaveral. The spacecraft is delivering more than 1 ton of supplies to the the International Space Station. (AP Photo/NASA TV)