Live coverage: Fresh crew docks at space station

Follow the key events of the Falcon 9 rocket’s ascent to orbit with 60 satellites for SpaceX’s Starlink broadband network.

The towering structure to be used for liftoffs of NASA’s Space Launch System rolled from a construction site to launch pad 39B at the Kennedy Space Center in Florida this week, arriving at the seaside complex Friday for a week of fit checks.

SpaceX’s next two missions will revert to launching older versions of the company’s Starlink internet satellites, instead of new second-generation Starlink platforms as originally planned, while ground teams work out unspecified problems with the first batch of upgraded Starlinks launched in February.