Live video of launch pad 39A (members only)

The launch of SpaceX’s next resupply mission to the International Space Station has been rescheduled for no earlier than Dec. 19 to make sure the Falcon 9 rocket and Dragon supply ship are ready for flight.

The European Space Agency’s Solar Orbiter spacecraft — assembled in Britain and set for liftoff in February — has completed environmental testing in Germany and is scheduled to ride a cargo plane to NASA’s Kennedy Space Center in Florida to begin launch preparations Oct. 31, several weeks earlier than planned to avoid complications stemming from Brexit.

United Launch Alliance’s first full-scale Vulcan booster with two Blue Origin BE-4 engines arrived at Cape Canaveral Space Force Station on Saturday, the first time in more than a decade that a core stage from a new family of orbital-class rockets has rolled into the Florida launch facility.