Video: Press site view of SpaceX resupply launch (members only)

SpaceX has delayed the launch of the SES 12 commercial communications satellite from Cape Canaveral until Monday to conduct additional tests on the Falcon 9 rocket’s second stage, officials said Thursday.

Departing Expedition 49 Commander Anatoly Ivanishin hands over International Space Station command to NASA astronaut Shane Kimbrough.

The Starlink 10-57 mission is also SpaceX’s 80th launch this year carrying Starlink satellites to low Earth obit. It’s targeting liftoff from pad 39A at NASA’s Kennedy Space Center is scheduled for 8:32 a.m. EDT (1232 UTC).