The crew trained for more than two-and-a-half years to prepare for their spacewalk and an on-orbit Starlink demonstration. Launch is now no earlier than Friday, Aug. 30, weather permitting.

Catching a break from nearby thunderstorms, a SpaceX Falcon 9 rocket soared through mostly cloudy skies into space Saturday on the 100th launch from historic pad 39A in Florida, sending a fresh batch of supplies and experiments to the International Space Station.

This will be the eighth flight of the X-37B and the third time that it will be launched by SpaceX. The Falcon 9 rocket is scheduled to liftoff from Launch Complex 39A at 11:50 p.m. EDT (0350 UTC).