(KCEN) -- The commercial supply ship Dragon has docked with the International Space Station.
Station astronauts used a robot arm Sunday morning to grab the supply ship.
Space-X struggled with the Dragon following Friday's launch.
A clogged pressure line or stuck valve prevented the Dragon's thrusters from working, and it took flight controllers several hours to gain control and salvage the mission.
It will remain at the station most of March before returning to Earth with science samples.