SpaceX's Starlink satellite network was back up and running on Friday as engineers hunted for the root cause of one of its biggest international outages the night before, a rare disruption for the powerful internet system set off by an internal software failure.

SpaceX launched 28 Starlink satellites into low-Earth orbit from Cape Canaveral Space Force Station's Pad 40 in Florida at 5:01 a.m. EDT Saturday.

SpaceX's Starlink suffered one of its biggest international outages on Thursday when an internal  software failure knocked tens of thousands of users offline, a rare disruption for Elon Musk's powerful satellite internet system.