Live coverage: Soyuz crew lands in Kazakhstan

NASA said Thursday that rookie astronaut Serena Auñón-Chancellor will replace Jeanette Epps on an expedition set for launch to the International Space Station in June.

SpaceX scrubbed the planned launch of its next set of Starlink satellites Friday. A Falcon 9 rocket is awaiting liftoff from pad 39A at the Kennedy Space Center in Florida with 57 Starlink Internet satellites and two commercial Earth-imaging microsatellites for BlackSky.

A wave of clock failures on Europe’s Galileo navigation satellites has not knocked any of the craft offline, but officials want to better understand the problem before launching more satellites into the fleet.