SpaceX Cargo Delivery Back on Track

Connects with International Space Station after dealing with technical problems

 A privately owned Dragon capsule arrived safely at the International Space Station on Sunday, delivering a ton of supplies, after a shaky, nerve-wracking start to its mission.

The Dragon's arrival was one day late but especially sweet -- and not because of the fresh fruit on board for the station astronauts who snared the capsule.

SpaceX, the California-based company founded by billionaire Elon Musk who helped create PayPal, had to struggle with the Dragon following its Friday 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.